Discussion Forum: Thread 266404

 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 15, 2020 22:15
 Subject: Category Definitions Discussion
 Viewed: 260 times
 Topic: Catalog
 Status:Open
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StormChaser (566)

Location:  USA, Oklahoma
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As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

https://www.bricklink.com/help.asp?helpID=2479

Your feedback is critically important. Once this page is official we will be
open to moving items from one category to another as necessary. The implementation
of these category definitions will also allow the launch of the Part Reclassifications
project from the roadmap.

Please take the time to look over this page and provide feedback. We are open
right now to changing anything on the page and will carefully consider all feedback.

This page is not fully finished and will be undergoing continual revisions between
now and the time it's implemented. Some questions to consider as you look
through the page:

Do the definitions do their job?

Imagine a part you'd like to see placed into another category. Do the definitions
of the existing category for the part and the category where you'd like to
see the part moved fully explain the necessity for the move?

Is the page structured well?

We are working on a heading that will allow quick navigation to each section.
It will be added soon. Beyond that, is the page confusing or difficult to understand?

Will this page solve problems or add to them?

This page will affect the future direction of the catalog to some degree. Will
it be a positive or negative effect? Will this page help to resolve problems
regarding where items should go?

Keep in mind that this page does not address item types (sets vs. gear, for example).
That will be a separate update. For now we're just trying to define what
existing categories should contain.
 Author: bje View Messages Posted By bje
 Posted: Apr 16, 2020 06:06
 Subject: Re: Category Definitions Discussion
 Viewed: 51 times
 Topic: Catalog
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bje (1577)

Location:  South Africa, Western Cape
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As a starting point, could you please split that page into seperate pages for
sets, minifigs and parts categories. It would make it a fair bit easier on the
eye and I should a change to parts category or the way in which it is defined,
will be far more difficult than for a set.

Also, parts' definitions are probably more to a category definition than
a set which is possibly more of a distinct product range.

In Catalog, StormChaser writes:
  As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

https://www.bricklink.com/help.asp?helpID=2479

Your feedback is critically important. Once this page is official we will be
open to moving items from one category to another as necessary. The implementation
of these category definitions will also allow the launch of the Part Reclassifications
project from the roadmap.

Please take the time to look over this page and provide feedback. We are open
right now to changing anything on the page and will carefully consider all feedback.

This page is not fully finished and will be undergoing continual revisions between
now and the time it's implemented. Some questions to consider as you look
through the page:

Do the definitions do their job?

Imagine a part you'd like to see placed into another category. Do the definitions
of the existing category for the part and the category where you'd like to
see the part moved fully explain the necessity for the move?

Is the page structured well?

We are working on a heading that will allow quick navigation to each section.
It will be added soon. Beyond that, is the page confusing or difficult to understand?

Will this page solve problems or add to them?

This page will affect the future direction of the catalog to some degree. Will
it be a positive or negative effect? Will this page help to resolve problems
regarding where items should go?

Keep in mind that this page does not address item types (sets vs. gear, for example).
That will be a separate update. For now we're just trying to define what
existing categories should contain.
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 16, 2020 07:09
 Subject: Re: Category Definitions Discussion
 Viewed: 34 times
 Topic: Catalog
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yorbrick (1182)

Location:  United Kingdom, England
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Are all the dates necessary, as these will need updating if things change and
new items fall into older categories.

For example:

No dates are given:
Harry Potter - For themed sets and related items from the Harry Potter universe.
Star Wars - For themed sets and related items from the Star Wars universe.


Dates are given, but not so well defined:
The Lord of the Rings - For sets and other items related to three different Lord
of the Rings movies and released in the early 2010s

Dates are given and are highly specific:
Pirates of the Caribbean - For sets and other items released primarily in 2011
and related to one or more movies of the same name.

Why not use the HP or SW one as a guide and not include dates in the others.
POTC had The Silent Mary and also the Brickheadz sets outside of the given date,
so why not just say POTC refers to the POTC universe. Same for LOTR and the Tolkein
universe.

I can understand having dates for in-house themes that will not be repeated such
as Pirates I, II and III. If LEGO suddenly decides to release more LOTR or POTC
sets, then having the dates will be misleading or need correcting.



This one is incorrect:
The Battle of the Five Armies - For sets and other items related to the Lord
of the Rings movie of the same name and released in the mid 2010s.

This was a "The Hobbit" movie, not LOTR.
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 16, 2020 07:14
 Subject: Re: Category Definitions Discussion
 Viewed: 40 times
 Topic: Catalog
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yorbrick (1182)

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In Catalog, yorbrick writes:
  Are all the dates necessary, as these will need updating if things change and
new items fall into older categories.

For example:

No dates are given:
Harry Potter - For themed sets and related items from the Harry Potter universe.
Star Wars - For themed sets and related items from the Star Wars universe.


Dates are given, but not so well defined:
The Lord of the Rings - For sets and other items related to three different Lord
of the Rings movies and released in the early 2010s

Dates are given and are highly specific:
Pirates of the Caribbean - For sets and other items released primarily in 2011
and related to one or more movies of the same name.

Why not use the HP or SW one as a guide and not include dates in the others.
POTC had The Silent Mary and also the Brickheadz sets outside of the given date,
so why not just say POTC refers to the POTC universe. Same for LOTR and the Tolkein
universe.

I can understand having dates for in-house themes that will not be repeated such
as Pirates I, II and III. If LEGO suddenly decides to release more LOTR or POTC
sets, then having the dates will be misleading or need correcting.



This one is incorrect:
The Battle of the Five Armies - For sets and other items related to the Lord
of the Rings movie of the same name and released in the mid 2010s.

This was a "The Hobbit" movie, not LOTR.

Thinking more about it, might it be more useful to have three separate lists:

1. In-house LEGO theme names
2. Licensed theme names
3. Everything else (all the parts type names and so on)
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 16, 2020 07:53
 Subject: Re: Category Definitions Discussion
 Viewed: 37 times
 Topic: Catalog
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yorbrick (1182)

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There are a number of phrases such as "intended to appeal to girls". Is this
necessary? Shouldn't the phrases describe the product/item and not the intended
user? Otherwise, why not have things like "intended to appeal to Star Wars fans"
for Star Wars sets, and so on.


Dots - For a line of sets and related items initially released in 2020 that
featured tiny parts and were intended to appeal to girls.

LEGO uses the word KIDS in the advertising, and there are some boys in the
adverts for them.
 Author: 3001Bricks View Messages Posted By 3001Bricks
 Posted: Apr 16, 2020 08:58
 Subject: Re: Category Definitions Discussion
 Viewed: 39 times
 Topic: Catalog
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3001Bricks (2422)

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In Catalog, yorbrick writes:
  There are a number of phrases such as "intended to appeal to girls". Is this
necessary? Shouldn't the phrases describe the product/item and not the intended
user? Otherwise, why not have things like "intended to appeal to Star Wars fans"
for Star Wars sets, and so on.


Dots - For a line of sets and related items initially released in 2020 that
featured tiny parts and were intended to appeal to girls.

LEGO uses the word KIDS in the advertising, and there are some boys in the
adverts for them.

Lego clearly takes distance from aiming at just girls or just boys.:

Screenshot from https://www.lego.com/en-us/product/extra-dots-series-1-41908
 
 Author: bje View Messages Posted By bje
 Posted: Apr 16, 2020 07:54
 Subject: Re: Category Definitions Discussion
 Viewed: 34 times
 Topic: Catalog
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bje (1577)

Location:  South Africa, Western Cape
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Can you also please clarify which language you will be settling on for definitions
of ALL items in the catalogue?

As an example:
An Antenna (pl. Antennae) (N) for UK English is an organ some animals feel with.
An Aerial (N) in UK English is a man-made structure for receiving/sending signals
such as radio waves.

Antenna (pl. Antennas) and Aerial in US English, however, are used interchangeably
and has the same meaning as the UK Aerial.

Thus your current definition of an Antenna would only be correct in the US using
US English. I do not specifically want to spend an age trying to understand the
meanings in the catalogue, or give you a bunch of revised definitions all quite
useless because I was defining the thing or understanding it incorrectly. You
should also bear in mind that not all users are native English speaking and we
should use the easiest understandable international version of whatever version
of the language is used to describe catalogue items.

For instance in Afrikaans the meaning of an antenna corresponds to the UK English,
whereas an aerial is the better definition what the parts actually resemble.
Most people here simply call those parts aerials and leave the antennae for feelers
on a parktown prawn.

Thus, you can use UK English and change the category name to Aerial and
define it as: parts resembling structures for broadcasting/receiving radio/television
and other signals
;
or
you can use US English and keep the category as Antenna and define it
as: parts resembling aerials.

In a similar vein, consider the definition of a tail, and see if any of the parts
in the tail category actually meet the definition of a tail. The parts are mostly
used as stabilisers or fin assemblies for aircraft only at this time, so these
can probably move to the Aircraft section. However, if it is a stabiliser for
all types of vehicles, then it probably would need its own category and should
include anything with a fin (including some round bricks, tiles and vehicle parts).
Whichever is settled on, it would still be better to leave tails for figure body
parts, so that we do not have category definitions that clash with the ordinary
meaning of the word. For that we would need to know which is the standard catalogue
admins plan to use (it would also help when new definitions need to evolve as
TLG adds new part categories).






In Catalog, StormChaser writes:
  As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

https://www.bricklink.com/help.asp?helpID=2479

Your feedback is critically important. Once this page is official we will be
open to moving items from one category to another as necessary. The implementation
of these category definitions will also allow the launch of the Part Reclassifications
project from the roadmap.

Please take the time to look over this page and provide feedback. We are open
right now to changing anything on the page and will carefully consider all feedback.

This page is not fully finished and will be undergoing continual revisions between
now and the time it's implemented. Some questions to consider as you look
through the page:

Do the definitions do their job?

Imagine a part you'd like to see placed into another category. Do the definitions
of the existing category for the part and the category where you'd like to
see the part moved fully explain the necessity for the move?

Is the page structured well?

We are working on a heading that will allow quick navigation to each section.
It will be added soon. Beyond that, is the page confusing or difficult to understand?

Will this page solve problems or add to them?

This page will affect the future direction of the catalog to some degree. Will
it be a positive or negative effect? Will this page help to resolve problems
regarding where items should go?

Keep in mind that this page does not address item types (sets vs. gear, for example).
That will be a separate update. For now we're just trying to define what
existing categories should contain.
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 16, 2020 08:02
 Subject: Re: Category Definitions Discussion
 Viewed: 30 times
 Topic: Catalog
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yorbrick (1182)

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Another funny language one here:

Card, Collector Card - For items that are essentially trading cards released
in the 1990s.
Card, Trading Card - For cards that typically come in series to be collected.

Collector cards are essentially trading cards, whereas trading cards are
to be collected.

Aren't these the same thing, differentiated here only by a release date?
If they are different things, then I note that all of the Collector Cards are
LEGO Builders Club cards. If that is what makes them Collector Cards rather than
Trading Cards, why not call them that.
 Author: tons_of_bricks View Messages Posted By tons_of_bricks
 Posted: Apr 16, 2020 08:06
 Subject: Re: Category Definitions Discussion
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 Topic: Catalog
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tons_of_bricks (12720)

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Poor "Y"... it needs a category. Even "X" and "Q" have categories.
 Author: bje View Messages Posted By bje
 Posted: Apr 16, 2020 08:30
 Subject: Re: Category Definitions Discussion
 Viewed: 34 times
 Topic: Catalog
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bje (1577)

Location:  South Africa, Western Cape
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In Catalog, firestar246 writes:
  Poor "Y"... it needs a category. Even "X" and "Q" have categories.

look under Miscellaneous
 Author: bje View Messages Posted By bje
 Posted: Apr 16, 2020 08:18
 Subject: Re: Category Definitions Discussion
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 Topic: Catalog
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bje (1577)

Location:  South Africa, Western Cape
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This is wholly incorrect:
Container - For items relating to a fixed system designed to easily transport
objects on a moving belt.

This is confusing as it refers to parts category as well:
Technic - For a loosely-themed line of sets and related items released over a
number of decades featuring models with mechanical functions.

You not heard of Brexit?
Team GB - For a series of 9 collectible minifigures and related items which were
released in 2012 and featured an Olympic team from Europe.

This is confusing also:
Service Packs - For sets and other items that include spare or replacement parts,
but not for Freestyle, Creator style, or other bulk brick items.
and
xtra - For sets and other items in an ongoing line of service packs first released
in 2018.

Is Xtra a bulk brick item in that it requires its own definition away from service
packs?
 Author: infinibrix View Messages Posted By infinibrix
 Posted: Apr 16, 2020 08:47
 Subject: Re: Category Definitions Discussion
 Viewed: 41 times
 Topic: Catalog
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infinibrix (4978)

Location:  United Kingdom, England
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In Catalog, bje writes:
  
You not heard of Brexit?
Team GB - For a series of 9 collectible minifigures and related items which were
released in 2012 and featured an Olympic team from Europe.


Just because we've left the European Union it does not mean we do not belong
to the continent of Europe or are you suggesting we are now part of the America's
or perhaps we will just create our own newly named continent?
Norway, Switzerland, Ukraine are also not part of the EU but they are still based
in Europe!
 Author: popsicle View Messages Posted By popsicle
 Posted: Apr 16, 2020 08:53
 Subject: Re: Category Definitions Discussion
 Viewed: 31 times
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popsicle (6652)

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In Catalog, infinibrix writes:
  In Catalog, bje writes:
  
You not heard of Brexit?
Team GB - For a series of 9 collectible minifigures and related items which were
released in 2012 and featured an Olympic team from Europe.


Just because we've left the European Union it does not mean we do not belong
to the continent of Europe or are you suggesting we are now part of the America's
or perhaps we will just create our own newly named continent?
Norway, Switzerland, Ukraine are also not part of the EU but they are still based
in Europe!

+1
 Author: bje View Messages Posted By bje
 Posted: Apr 16, 2020 08:54
 Subject: Re: Category Definitions Discussion
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 Topic: Catalog
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bje (1577)

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In Catalog, infinibrix writes:
  In Catalog, bje writes:
  
You not heard of Brexit?
Team GB - For a series of 9 collectible minifigures and related items which were
released in 2012 and featured an Olympic team from Europe.


Just because we've left the European Union it does not mean we do not belong
to the continent of Europe or are you suggesting we are now part of the America's
or perhaps we will just create our own newly named continent?
Norway, Switzerland, Ukraine are also not part of the EU but they are still based
in Europe!

Was never part of the European continent - https://en.wikipedia.org/wiki/Continental_Europe

Was the whole point not that you must become your own thingie?
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 16, 2020 09:46
 Subject: Re: Category Definitions Discussion
 Viewed: 28 times
 Topic: Catalog
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yorbrick (1182)

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  Was the whole point not that you must become your own thingie?

No, just that we are no longer part of THAT thingie, where THAT thingie is the
European Union.
 Author: SylvainLS View Messages Posted By SylvainLS
 Posted: Apr 16, 2020 10:02
 Subject: Re: Category Definitions Discussion
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SylvainLS (46)

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In Catalog, bje writes:
  […]
Was never part of the European continent - https://en.wikipedia.org/wiki/Continental_Europe

1. You’re confusing the whole European continent and Continental Europe.

From the very link you gave: “‘European continent’ redirects here. For the whole
of the European continent including its islands, see Europe.”

“Continent” has two meanings: a large landmass, and one of eleven¹ recognized
parts of the world.

So “European continent” is more commonly the large landmass, the “not-islands”
part, of the continent “Europe” but some islands, including the British islands,
are parts of “Europe.”

(¹ Europe, Asia, Australia², North America, South America, Africa, Antartica,
Eurasia (Europe & Asia), Oceania, America (both North and South), or Afro-Eurasia
(Eurasia & Africa).
² The continent Australia, not the country….)


2. ”Was never” is too strong a phrase: https://en.wikipedia.org/wiki/Doggerland


  Was the whole point not that you must become your own thingie?

Geography shapes politics, not the other way around
 Author: starbeanie View Messages Posted By starbeanie
 Posted: Apr 16, 2020 08:48
 Subject: Re: Category Definitions Discussion
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starbeanie (10815)

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Even without Brexit, Team GB stands for Team Great Britain. Europe should never
have been involved in the definition.

extra is because that's how the package is labeled
 
Set No: 40312  Name: Streetlamps polybag
* 
40312-1 (Inv) Streetlamps polybag
34 Parts, 2018
Sets: xtra


In Catalog, bje writes:
  This is wholly incorrect:
Container - For items relating to a fixed system designed to easily transport
objects on a moving belt.

This is confusing as it refers to parts category as well:
Technic - For a loosely-themed line of sets and related items released over a
number of decades featuring models with mechanical functions.

You not heard of Brexit?
Team GB - For a series of 9 collectible minifigures and related items which were
released in 2012 and featured an Olympic team from Europe.

This is confusing also:
Service Packs - For sets and other items that include spare or replacement parts,
but not for Freestyle, Creator style, or other bulk brick items.
and
xtra - For sets and other items in an ongoing line of service packs first released
in 2018.

Is Xtra a bulk brick item in that it requires its own definition away from service
packs?
 Author: popsicle View Messages Posted By popsicle
 Posted: Apr 16, 2020 08:54
 Subject: Re: Category Definitions Discussion
 Viewed: 28 times
 Topic: Catalog
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popsicle (6652)

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In Catalog, starbeanie writes:
  Even without Brexit, Team GB stands for Team Great Britain. Europe should never
have been involved in the definition.

Agreed
 Author: hpoort View Messages Posted By hpoort
 Posted: Apr 16, 2020 12:41
 Subject: Re: Category Definitions Discussion
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hpoort (410)

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I don't see the definition of Plate, Modified and Tile, Modified helping
to choose between them for parts like
 
Part No: 33909  Name: Tile, Modified 2 x 2 with Studs on Edge
* 
33909 Tile, Modified 2 x 2 with Studs on Edge
Parts: Tile, Modified
 
Part No: 15573  Name: Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
* 
15573 Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
Parts: Plate, Modified
 
Part No: 6180  Name: Tile, Modified 4 x 6 with Studs on Edges
* 
6180 Tile, Modified 4 x 6 with Studs on Edges
Parts: Tile, Modified
.

Coincidentally, earlier today I noted the category Mini Dolls Hair - Is there
any physical distinction between hair originally used for mini dolls and hair
used for minifigures? If not, why would this be a separate category?
 
Part No: 15675  Name: Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
* 
15675 Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
Parts: Mini Doll, Hair
 
Part No: 37703  Name: Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
* 
37703 Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
Parts: Minifigure, Hair
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 16, 2020 12:53
 Subject: Re: Category Definitions Discussion
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yorbrick (1182)

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In Catalog, hpoort writes:
  I don't see the definition of Plate, Modified and Tile, Modified helping
to choose between them for parts like
 
Part No: 33909  Name: Tile, Modified 2 x 2 with Studs on Edge
* 
33909 Tile, Modified 2 x 2 with Studs on Edge
Parts: Tile, Modified
 
Part No: 15573  Name: Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
* 
15573 Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
Parts: Plate, Modified
 
Part No: 6180  Name: Tile, Modified 4 x 6 with Studs on Edges
* 
6180 Tile, Modified 4 x 6 with Studs on Edges
Parts: Tile, Modified
.

Coincidentally, earlier today I noted the category Mini Dolls Hair - Is there
any physical distinction between hair originally used for mini dolls and hair
used for minifigures? If not, why would this be a separate category?
 
Part No: 15675  Name: Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
* 
15675 Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
Parts: Mini Doll, Hair
 
Part No: 37703  Name: Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
* 
37703 Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
Parts: Minifigure, Hair

Some are worn by both minidolls and minifigures, such as:

 
Part No: 92254pb01  Name: Mini Doll, Hair Combo, Hair with Hat, Long Ponytail, Side Bangs, Hole in Back with Molded Black Horse Riding Helmet Pattern
* 
92254pb01 Mini Doll, Hair Combo, Hair with Hat, Long Ponytail, Side Bangs, Hole in Back with Molded Black Horse Riding Helmet Pattern
Parts: Mini Doll, Hair

https://www.bricklink.com/catalogItemIn.asp?P=92254pb01&in=M
 Author: Miro78 View Messages Posted By Miro78
 Posted: Apr 16, 2020 13:41
 Subject: Re: Category Definitions Discussion
 Viewed: 44 times
 Topic: Catalog
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Miro78 (2360)

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In Catalog, yorbrick writes:
  In Catalog, hpoort writes:
  I don't see the definition of Plate, Modified and Tile, Modified helping
to choose between them for parts like
 
Part No: 33909  Name: Tile, Modified 2 x 2 with Studs on Edge
* 
33909 Tile, Modified 2 x 2 with Studs on Edge
Parts: Tile, Modified
 
Part No: 15573  Name: Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
* 
15573 Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
Parts: Plate, Modified
 
Part No: 6180  Name: Tile, Modified 4 x 6 with Studs on Edges
* 
6180 Tile, Modified 4 x 6 with Studs on Edges
Parts: Tile, Modified
.


I agree. The distinction between Plate, Modified and Tile, Modified is quite
confusing as are some parts that blur between the 2 categories of Brick, Modified
and Slope, Curved such as

 
Part No: 37352  Name: Slope, Curved 1 x 2
* 
37352 Slope, Curved 1 x 2
Parts: Slope, Curved
 
Part No: 49307  Name: Slope, Curved 1 x 1 x 2/3 Double
* 
49307 Slope, Curved 1 x 1 x 2/3 Double
Parts: Slope, Curved
 
Part No: 6191  Name: Slope, Curved 1 x 4 x 1 1/3
* 
6191 Slope, Curved 1 x 4 x 1 1/3
Parts: Slope, Curved
 
Part No: 6192  Name: Slope, Curved 2 x 4 Double (Undetermined Type)
* 
6192 Slope, Curved 2 x 4 Double (Undetermined Type)
Parts: Slope, Curved
which have no studs and are less like a brick and more like a slope much like
 
Part No: 30602  Name: Slope, Curved 2 x 2 Lip
* 
30602 Slope, Curved 2 x 2 Lip
Parts: Slope, Curved
 
Part No: 44675  Name: Slope, Curved 2 x 2 with Debossed Side Ports
* 
44675 Slope, Curved 2 x 2 with Debossed Side Ports
Parts: Slope, Curved

yet
 
Part No: 44126  Name: Slope, Curved 6 x 2
* 
44126 Slope, Curved 6 x 2
Parts: Slope, Curved
 
Part No: 41766  Name: Slope, Curved 8 x 2 x 2 with 4 Recessed Studs
* 
41766 Slope, Curved 8 x 2 x 2 with 4 Recessed Studs
Parts: Slope, Curved
 
Part No: 42022  Name: Slope, Curved 6 x 1
* 
42022 Slope, Curved 6 x 1
Parts: Slope, Curved
have studs and curved surface much like
 
Part No: 33243  Name: Slope, Curved 3 x 1 x 2 with Hollow Stud
* 
33243 Slope, Curved 3 x 1 x 2 with Hollow Stud
Parts: Slope, Curved

These all fall in the gray zone in my opinion and it's hard for admins trying
to classify them. I believe some time ago it was defined as if the base is brick
with curved surface or a curved slope.

There will be many more considerations for other part categories and a daunting
task it will be.


  
  Coincidentally, earlier today I noted the category Mini Dolls Hair - Is there
any physical distinction between hair originally used for mini dolls and hair
used for minifigures? If not, why would this be a separate category?
 
Part No: 15675  Name: Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
* 
15675 Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
Parts: Mini Doll, Hair
 
Part No: 37703  Name: Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
* 
37703 Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
Parts: Minifigure, Hair

Some are worn by both minidolls and minifigures, such as:

 
Part No: 92254pb01  Name: Mini Doll, Hair Combo, Hair with Hat, Long Ponytail, Side Bangs, Hole in Back with Molded Black Horse Riding Helmet Pattern
* 
92254pb01 Mini Doll, Hair Combo, Hair with Hat, Long Ponytail, Side Bangs, Hole in Back with Molded Black Horse Riding Helmet Pattern
Parts: Mini Doll, Hair

https://www.bricklink.com/catalogItemIn.asp?P=92254pb01&in=M

This was already answered, but it appears that there is no distinction, except
that some of the minidoll hair pieces appeared first with minidolls. Otherwise,
they fit both heads for the most part. I am not sure if any of the ponytails/overhangs
cause any issues for one type of figure over other.

Miro
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 16, 2020 21:13
 Subject: Re: Category Definitions Discussion
 Viewed: 37 times
 Topic: Catalog
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StormChaser (566)

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In Catalog, Miro78 writes:
  The distinction between Plate, Modified and Tile, Modified is quite
confusing as are some parts that blur between the 2 categories of Brick, Modified
and Slope, Curved

And this is the purpose of category definitions: to clear up that confusion.
Do these new definitions serve that purpose? If not, then how can they be improved?
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 17, 2020 04:45
 Subject: Re: Category Definitions Discussion
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yorbrick (1182)

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In Catalog, StormChaser writes:
  In Catalog, Miro78 writes:
  The distinction between Plate, Modified and Tile, Modified is quite
confusing as are some parts that blur between the 2 categories of Brick, Modified
and Slope, Curved

And this is the purpose of category definitions: to clear up that confusion.
Do these new definitions serve that purpose? If not, then how can they be improved?

They have to explicitly place every existing part into one category or another.

So for example, if a part with a curved surface has at least one top stud on
it, then define it as a modified brick. If it does not, then define it as a slope.
And so on. That way, there is no ambiguity. Of course, some people may not agree
with the definitions, but if they are defined, then at least there are no arguments
as to where it should go.
 Author: bje View Messages Posted By bje
 Posted: Apr 16, 2020 13:28
 Subject: Re: Category Definitions Discussion
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bje (1577)

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In Catalog, hpoort writes:
  I don't see the definition of Plate, Modified and Tile, Modified helping
to choose between them for parts like
 
Part No: 33909  Name: Tile, Modified 2 x 2 with Studs on Edge
* 
33909 Tile, Modified 2 x 2 with Studs on Edge
Parts: Tile, Modified
 
Part No: 15573  Name: Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
* 
15573 Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
Parts: Plate, Modified
 
Part No: 6180  Name: Tile, Modified 4 x 6 with Studs on Edges
* 
6180 Tile, Modified 4 x 6 with Studs on Edges
Parts: Tile, Modified
.

From the present definition of Tile, none of those would be Tile, Modified.
Tile - For items nearly identical to plates for which all corners are square
and the tops are smooth, meaning without studs or other protuberances.

So they would all have to move to Plate, Modified.

Similar, this would be round tile:
 
Part No: 15535  Name: Tile, Round 2 x 2 with Hole
* 
15535 Tile, Round 2 x 2 with Hole
Parts: Tile, Round
but not this:
 
Part No: 18674  Name: Tile, Round 2 x 2 with Open Stud
* 
18674 Tile, Round 2 x 2 with Open Stud
Parts: Tile, Round
 
Part No: 32627  Name: Tile, Round 4 x 4 with 2 Hollow Studs
* 
32627 Tile, Round 4 x 4 with 2 Hollow Studs
Parts: Tile, Round
 
Part No: 74698  Name: Tile, Round 2 x 2 with Lifting Ring Thick and Bottom Stud Holder
* 
74698 Tile, Round 2 x 2 with Lifting Ring Thick and Bottom Stud Holder
Parts: Tile, Round
Which should all then become Plate, Round
  
Coincidentally, earlier today I noted the category Mini Dolls Hair - Is there
any physical distinction between hair originally used for mini dolls and hair
used for minifigures? If not, why would this be a separate category?
 
Part No: 15675  Name: Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
* 
15675 Mini Doll, Hair Friends Long Ponytail, French Braided, Hole on Top, 2 Holes on Back
Parts: Mini Doll, Hair
 
Part No: 37703  Name: Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
* 
37703 Minifigure, Hair Female Long with Right Side Part (Extra Tolerance for Body Wear in Back)
Parts: Minifigure, Hair
 Author: WoutR View Messages Posted By WoutR
 Posted: Apr 24, 2020 08:12
 Subject: Re: Category Definitions Discussion
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WoutR (919)

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In Catalog, bje writes:
  In Catalog, hpoort writes:
  I don't see the definition of Plate, Modified and Tile, Modified helping
to choose between them for parts like
 
Part No: 33909  Name: Tile, Modified 2 x 2 with Studs on Edge
* 
33909 Tile, Modified 2 x 2 with Studs on Edge
Parts: Tile, Modified
 
Part No: 15573  Name: Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
* 
15573 Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
Parts: Plate, Modified
 
Part No: 6180  Name: Tile, Modified 4 x 6 with Studs on Edges
* 
6180 Tile, Modified 4 x 6 with Studs on Edges
Parts: Tile, Modified
.

From the present definition of Tile, none of those would be Tile, Modified.
Tile - For items nearly identical to plates for which all corners are square
and the tops are smooth, meaning without studs or other protuberances.

So they would all have to move to Plate, Modified.

I agree. If there are studs on top, then it is a "Plate, modified". If there
are no studs on top, then it is a "Tile, modified".
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 24, 2020 08:53
 Subject: Re: Category Definitions Discussion
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yorbrick (1182)

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Part No: 15573  Name: Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
* 
15573 Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)
Parts: Plate, Modified

  I agree. If there are studs on top, then it is a "Plate, modified". If there
are no studs on top, then it is a "Tile, modified".

Should the hollow stud count as a stud as it is different to studs on normal
plates. To me, a jumper is a tile with a hollow stud in the middle.

And what about this one? It has a stud on it, its just that there is a bar in
between the surface and the stud.

 
Part No: 30256  Name: Support 2 x 2 x 5 Bar on Tile Base with Solid Stud and Stop Ring
* 
30256 Support 2 x 2 x 5 Bar on Tile Base with Solid Stud and Stop Ring
Parts: Support

Although I would say a 2x2 jumper and the bar above are in the same family as
this one, which is clearly not a plate.

 
Part No: 2460  Name: Tile, Modified 2 x 2 with Pin
* 
2460 Tile, Modified 2 x 2 with Pin
Parts: Tile, Modified

Making up taxonomy rules is very difficult!
 Author: infinibrix View Messages Posted By infinibrix
 Posted: Apr 17, 2020 06:51
 Subject: Re: Category Definitions Discussion
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infinibrix (4978)

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If I could make an overall suggestion that may help improve things?

Currently when you browse a store you have several main categories highlighted
in black
such as:-

Sets
Parts
Minifigs
Gear

Since the number of sub categories within the 'Parts' is very extensive
I’m wondering if it might make sense to give 'Minifigure Parts' their
own category which will allow those specifically looking for minifig parts an
easier way of finding what they need with a quick glance. One good thing about
this is that instead of the current categories under parts displayed as Minifigure
Head, Minifigure, Torso, Minifigure Weapon they can just be displayed directly
under 'Minifigure Parts' as Heads, Torsos, Weapons this will further
allow the categories to be displayed fully as intended rather than cut short...

I would also go as far as to say that shopping for minifigure parts is a very
popular trend that probably warrants its own specific section with the introduction
of more specific minifig categories some of which have already been mentioned
such as:-

Arms
Short Legs
Modified Legs: Skeleton, Droid, Mermaid Tail, Peg Legs
Sloped Legs
Modified Torsos: Skeleton, Droid
etc, etc...

I don't necessarily have all the answers of how best to categorize each and
every minifig part but I think you get the general idea

I would also add that it might be better to give Polybags their own main category
too rather than have them hidden among the Sets?
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 17, 2020 13:15
 Subject: Re: Category Definitions - Update 1
 Viewed: 53 times
 Topic: Catalog
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Thank you all so much for the feedback! It has been most helpful.

bje: Split page into separate categories.

Response: This page is intended to function like a dictionary. Words
in a dictionary are not split into categories except by letter. That's what
I've done here. It is the simplest arrangement of category definitions possible
and I think we'd be wise to stick with it.

bje: Define the type of English used.

Response: This is a good point. Obviously the site is written in English
at this point, although just as obviously it should be accessible to everyone.
There are multiple versions of English usage and spelling, but the catalog's
unwritten policy is to use American spelling and meaning.

bje: There is a problem with the Tail category.

Response: Agreed. It should be Aircraft, Tail or something similar.
But right now we're not cleaning up item categories. We're just trying
to define what categories include or should include. There are multiple problems
with categories that need to be addressed and we can get into that later. The
category definitions page we're discussing will be a living document in the
sense that it will need to be regularly updated, so don't think these definitions
are fixed in stone.

bje: There is overlap with Card, Collector Card and Card, Trading Card categories.

Response: Agreed. Again, we're not addressing category issues at
the moment.

bje: The definition of Container is not accurate.

Response: Agreed and fixed.

bje: The definition of Technic is not clear.

Response: Technic is one of the categories that is used to mean multiple
things (sets, parts, etc.). I believe the current definition is sufficient.

bje: Why is xtra a separate category?

Response: Because it is a themed line defined on the package as "xtra"
by TLG. Technically, these are just service packs. When we start talking about
how things are categorized, it may be worth looking into a way to have all the
service packs (Bulk Bricks is another) under one parent category.

bje: There is a problem with the Team GB definition.

Response: Fixed.

bje: The definition of Service Packs need to be clarified.

Response: Fixed.

yorbrick: Do we really need years of release for so many categories?

Response: No, we don't. I'll fix these as necessary before the
page becomes official.

yorbrick: We should split this page into multiple pages.

Response: Please see my response to bje above. I strongly believe one
list is the best format.

yorbrick: We should remove the phrase "intended to appeal to girls."

Response: Agreed and fixed. I will say, however, that regardless of what
anyone says about certain themes such as Scala, Clikits, Paradisa, Belville,
and Friends, we're all intelligent enough to know what's going on.

yorbrick: Changes should be made to LOTR, POTC, and Battle of the Five Armies
definitions.


Response: Agreed and fixed.

hpoort: It is still difficult to determine the difference between Plate, Modified
and Tile, Modified.


Response: Somewhat, yes. I've updated the definition of Plate to
make this clearer.

hpoort: There is overlap between Minifigure, Hair and Mini Doll, Hair.

Response: Agreed. However, we're not working with categories right
now. We're only trying to define what existing categories contain or should
contain. Ideally we would do both things at the same time, but I believe that's
just too much going on at once.

Miro78: The difference between Brick, Modified and Slope, Curved is not clear
enough.


Response: Agreed and fixed (I think). See if the difference is clearer
now.

infinibrix: We should update the category tree.

Response: Agreed. But not right now. We're only trying to define
categories in this thread.

_________________________________________________________________________

And that's all the feedback so far. Please send more!

By the way, Randy was exceptionally kind to us all and coded in some remarkably
helpful navigation tools. Check them out!

https://www.bricklink.com/help.asp?helpID=2479
 Author: bje View Messages Posted By bje
 Posted: Apr 18, 2020 05:42
 Subject: Re: Category Definitions Discussion - Parts A sect
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Note: this should follow substance over form to avoid confusion, this so we do
not end up with piggy banks as human tools. Avoid words like similar, other,
items, variety, naturally - again to avoid confusion. Assemblies refer to parts
with inventories. Probably for the sake of completeness, all decorated parts
should have decorated categories, so decorated animal and antenna categories
should exist as well.
https://www.bricklink.com/catalogTree.asp?itemType=P

Definitions – Section A parts


Accessory, Human Tool – For parts to help humans interact, or is necessary
to perform a particular function, with LEGO. Note 1


Aircraft - For the following parts used in/on flying vehicles: fuselage
sections, motors, landing gear and stabilizer assemblies. Note 2


Aircraft, Decorated - For title-defined parts with printed, stickered,
or molded patterns. Also includes combined design pattern application methods.
Note 3



Animal, Accessory and Structures – For parts used as tools on or with
real or imaginary animals, or structures made by real or imaginary animals.
Note 4


Animal, Air - For parts resembling insects, birds, imaginary creatures
and creature assemblies capable of flight.Note 5


Animal, Body Part - For parts resembling bodies, arms, legs, and other
parts of animals, imaginary creatures and creature assemblies.

Animal, Dinosaur - For parts resembling reptiles and creature assemblies
that became extinct very long ago.

Animal, Land - For parts resembling flightless birds and insects, mammals,
reptiles, amphibians, imaginary creatures and creature assemblies at home on
land. Note 6

Animal, Water - For parts resembling fish, molluscs, crustaceans, imaginary
creatures and creature assemblies at home in water.

Antenna - For parts resembling masts or structures used to receive or
broadcast radio and television signals Note 7

Arm - For parts consisting of finger or ball joints used in the assembly
of lift arms. Note 8

Notes:

1. The current definition is respectfully not a definition of a tool and only
fits 25% of the actual parts in the category.

2. We have a wings category, so this cannot reference that. Also, aircraft have
REAR sections, not AFT. Stabiliser assemblies refer to the vertical and horizontal
stabiliser assembly items currently included in both the aircraft and tail categories.
Landing gear includes ski's, skids, pontoons, floats, wheel assemblies and
struts, by definition. It is confusing to refer here to wheel assemblies and
holders (currenty under wheel and modified plates). I do not think we need a
stabiliser category so better to move the tail parts here and do a way with that
category altogether.

3. “design” is confusing as it is not a descriptor used in the catalogue, "pattern"
is the descriptor.

4. Confusing to name a web/nest an accessory. Animal structures is a collective
for webs, nests etc. Please rename the category if nests, webs etc are to remain
here. I do not think a new category is required for those few entries. None of
the parts are used by animals. Probably some parts will have to move such as
bones, hats and plugs.

5. Some parts are assemblies. Also to define the classes to avoid confusion.

6. Thus, ducklings, chicks, ostriches, piggy bank creatures and penguins stay
in this category. Crocodiles and turtles would have to be moved here.

7. The current definition is confusing. With due respect, nothing fits in any
category unless it is put in a defined category. The structure/mast remains
an antenna even it is decorated or have an accessory attached to it.

8. It could probably be said these parts function like hinge cylinders, so this
definition so as to not make these parts seem confusingly like hinges. The parts
seem to be more used in the process of creating joints as opposed to articulated
hinges. Consider renaming the category to Lift Arm Joints?
 Author: WhiteHorseMatt View Messages Posted By WhiteHorseMatt
 Posted: Apr 18, 2020 06:47
 Subject: Re: Category Definitions Discussion - Parts A sect
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WhiteHorseMatt (1417)

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  Arm - For parts consisting of finger or ball joints used in the assembly
of lift arms. Note 8

As lift arms are a part type in their own right, I would argue against using
the term to describe items that do not fit in that category.

Also, although I can see it could go either way, I would argue that crocodiles
are more water, than land animals.

Matt
 Author: yorbrick View Messages Posted By yorbrick
 Posted: Apr 18, 2020 11:57
 Subject: Re: Category Definitions Discussion - Parts A sect
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yorbrick (1182)

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Ducks and chickens can fly. I think I'd prefer all birds to go in the same
category, to avoid such confusion.
 Author: infinibrix View Messages Posted By infinibrix
 Posted: Apr 18, 2020 12:53
 Subject: Re: Category Definitions Discussion - Parts A sect
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infinibrix (4978)

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In Catalog, yorbrick writes:
  Ducks and chickens can fly. I think I'd prefer all birds to go in the same
category, to avoid such confusion.

I would also go on to say that 'Animal Winged' might be a better category
description to use than 'Animal Air'?
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 21, 2020 14:39
 Subject: Re: Category Definitions Discussion - Parts A sect
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StormChaser (566)

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In Catalog, bje writes:
  detailed feedback on the new defintions

Thanks so much for this feedback! It was quite helpful and I genuinely appreciate
you providing it. I apologize that it took three days to respond - I'll
try to be more prompt in the future.

I've updated the page with some of your suggestions. For a few others I'll
respond below, but all your feedback was helpful.

  all decorated parts should have decorated categories

Probably so. Maybe. That is something that has been very slowly occurring over
the years. But for certain categories it would not make sense: rubber band &
belt, spring, cardboard sleeve, hoses, track system, and others.

  Aircraft - For the following parts used in/on flying vehicles: fuselage
sections, motors, landing gear and stabilizer assemblies. Note 2

I agree that Tail is not a good category at the moment. But we're not trying
right now to rearrange categories, only to define what they currently contain.
Later, once we have definitions in place, we can take a good look at categories
and any changes that need to be made. The definitions page we're working
on will be continually updated as necessary.

  Aircraft, Decorated - For title-defined parts with printed, stickered,
or molded patterns. Also includes combined design pattern application methods.
Note 3

For this note, my original intention when constructing the definitions page was
to move away from pattern to design. It seemed like a more accurate
word. However, the words do have somewhat of an overlapping meaning and it would
be difficult to convince anyone to change after 20 years, especially when there
is little justification. So I'll go through and change all of the decorated
definitions.

  Animal, Accessory and Structures – For parts used as tools on or with
real or imaginary animals, or structures made by real or imaginary animals.
Note 4

This is a somewhat confusing category, but for now I've left it alone. Once
we have definitions in place we can talk more about category-level reorganization
and renaming.

  Animal, Air - For parts resembling insects, birds, imaginary creatures
and creature assemblies capable of flight.Note 5

Here and in other places I've left out the "parts resembling" descriptor.
Yes, you're technically right to use this phrase. But I don't think
anyone is going to list an actual duck for sale. As for ducks and chickens,
they should be in the Animal, Air category.

  5. Some parts are assemblies.

True, but I don't think we really need to specify that for every category
that is used for parts.

Again, thanks for helping with this and I look forward to more input. I was
hoping people would provide line-by-line input before these are made official
to avoid problems later.

You, at least, are doing that.
 Author: jancg View Messages Posted By jancg
 Posted: Apr 18, 2020 09:01
 Subject: Re: Category Definitions Discussion
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I hope all decorated parts are either to be found in a category[.category].decorated
category or in a "all the others" main 'decorated' category. But please
*not* in a category that does not indicate containing decorated parts!
 Author: bje View Messages Posted By bje
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 Author: bje View Messages Posted By bje
 Posted: Apr 22, 2020 08:20
 Subject: Re: Category Definitions Discussion - Parts B sect
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Note: Decorated categories all to be printed, so not stated every time one of
these categories come up. Also, I have a major problem with adequately describing
parts where the part category name is the same as the TLG product line, for example
Bionicle, Scala, Belville etc. The main concern is obviously what would place
a part in the Belville category initially and then keep it there over time, or
otherwise, why would a Friends flower not be a plant, or a Bionicle ball not
be a ball etc etc.

The recurring : “do not naturally fit into any other category “ - this creates
dumping grounds. I have nightmares from dealing with accounts clerks and their
favourite line item – suspense accounts. Suspense accounts is where unallocated
items gets dumped. It is also where you find the bleached bones of the unwary
accounts clerk. Catalogue definitions and categories which allow for dumping
grounds is the stuff of nightmares– please do try to steer clear of this as much
as possible.

Plain means without studs, hollow means studs can be inserted, and stud or studded
means with studs.


Definitions – Section B parts

Ball
- For parts that are plain round objects that can freely roll or bounce.
Note 1

Bar - For parts that primarily consist of one or more rods which can be
used as supports, blocking openings, or to force something to move. Some are
capable of fitting into a hollow stud. Note 2

Baseplate - For parts thinner than plates, with cutting lines, covered
in studs or decorated with plain terrain scenery, game boards and other patterns,
and used as bases for building large models. Note 3

Baseplate, Raised - For baseplates that have plain or studded molded natural
relief, man-made structures or platforms.

Baseplate, Road - For baseplates that feature a plain surface or surface
decorated with road marking patterns intended for use of vehicle movement or
landing, Note 4

Belville(a) For a themed line of sets, the precursor to Friends,
featuring fantasy and everyday life scenes and figures larger and more articulate
than minifigures; (b) For parts which are larger in scale for use as
accessories to the animals and for setting the scenery in these sets. Note
5


Belville, Figure Accessory - For parts larger in scale consisting of clothing
and other accessories intended to be worn by or used on Belville figures.

Bionicle – (a) For a themed line of sets, once a subset of Technic, featuring
large articulated biomechanical figures featuring a ball-and-socket design with
unique abilities, based on original stories taking place in a science fantasy
universe;(b) For parts which forms the bodies, body parts, accessories
and weapons of the figures in these sets. Note 6

Bionicle, Kanohi Mask - For protective face coverings used by Bionicle
figures.

Boat – (a) For sets featuring boats and ships, excluding the themed line
of Maersk container ships treated as Sculptures. (b) For parts specifically
used in ships such as hulls, masts and anchors and for complete boats. Note
7


Bracket - For parts that are L-shaped, which has one plain or studded
side for attachment and one plain or studded side for support. Note 8

Brick - For basic and unmodified LEGO system building bricks with one
or more top studs, plain straight sides and a hollow bottom. Note 9

Brick, Arch – For bricks with a curved top and supports, used either to
support weight above it or for architectural purpose. Note 10

Brick, Modified - For bricks with at least one side that include a stud,
handle, pin, groove or other embellishment Note 11

Brick, Promotional - For bricks with a pattern intended to promote a location,
event, or other thing deemed worthy of promotion. Note 12

Brick, Round - For bricks and modified bricks that have completely spherical
sides. Note 13


Notes
1. This is a US definition of a ball. Round parts with attachments or studs probably
cannot roll.

2. Not all bars fit in studs.

3. This to include the rivers and other map like scenery for decorated baseplates,
also to mention the issue of cutting lines for baseplates in the definition.

4. Flat should respectfully avoided, the catalogue uses plain as a descriptor
for items with no studs. Probably some of these should move to the raised category.

5. The a and b split is to avoid confusion between the sets and the parts definitions.
I'm not sure about gear categories yet.

6. Respectfully, I think we can do better than a wide range of sets. Similar
a and b split as to Belville.

7. Following accepted definitions here – a boat is a small craft and a ship is
large craft intended for open water.

8. Brackets are generally designed for fastening and support and are mostly L
shaped.

9. We are of course hoping that every user of BL knows what a standard LEGO
system brick is.


10. From the brick definition, the tops have studs, the sides are plain, bottoms
are hollow, else it would not be bricks

11. Again from the brick definition, the tops have studs and the bottoms hollow,
the modified refers to the embellishments on the sides. Some parts are probably
better moved to curved slopes (still thinking about the idea that a slope is
an angled or curved brick (at least one top stud etc etc) and a curved slope
(or just curve) is a curved part with no studs on top).

12. Pattern same as for decorated

13. With respect, a round thing is not defined by being round, pardon the pun
but it makes for circular definition. Again, from the brick definition, at least
one stud on top and hollow below. Some parts are probably better moved to cylinders.
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 23, 2020 01:50
 Subject: Re: Category Definitions Discussion - Parts B sect
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StormChaser (566)

Location:  USA, Oklahoma
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In Catalog, bje writes:
  Note: Decorated categories all to be printed, so not stated every time one of
these categories come up.

Got "design" changed to "pattern" throughout the list. I must say that I am
really enjoying these discussions with you. They're just what I needed and
I am in your debt.

  Also, I have a major problem with adequately describing
parts where the part category name is the same as the TLG product line . . . or a Bionicle ball not be a ball etc etc.

I agree. This was a problem that cross-theme duplicates tried to address. With
parts being used across themes, for some parts it makes little sense to place
them into a theme.

So let's talk about balls. These and similar items could potentially be
moved once we get these definitions official:

 
Part No: 54821  Name: Ball, Bionicle Zamor Sphere
* 
54821 Ball, Bionicle Zamor Sphere
Parts: Ball
 
Part No: socball02  Name: Ball, Sports Soccer McDonald's
* 
socball02 Ball, Sports Soccer McDonald's
Parts: Ball
 
Part No: x45  Name: Ball, Sports Soccer Plain
* 
x45 Ball, Sports Soccer Plain
Parts: Ball
 
Part No: 99948  Name: Technic Ball Steel 18mm D.
* 
99948 Technic Ball Steel 18mm D.
Parts: Technic

But these? Perhaps not so much (which is why I keep talking about fitting naturally
into another category):

 
Part No: bb0655  Name: Electric Infrared (IR) Electronic Ball
* 
bb0655 Electric Infrared (IR) Electronic Ball
Parts: Electric
 
Part No: 23065px1  Name: Duplo Ball for Ball Tube with Red Open Mouth Smile and Black and White Eyes Pattern
* 
23065px1 Duplo Ball for Ball Tube with Red Open Mouth Smile and Black and White Eyes Pattern
Parts: DUPLO
 
Part No: x35  Name: Foam Ball 41mm D.
* 
x35 Foam Ball 41mm D.
Parts: Foam

It's sorta difficult because we're not going to move Duplo tiles and
Modulex tiles to the Tile category. People don't want to have to sort through
that stuff when they want to see regular tiles. So consider that when we talk
about moving stuff out of themed categories. I think the key deciding factor
is if the part crosses themes or obviously could.

But I agree that some parts like this one are obviously woefully miscategorized:

 
Part No: 32606  Name: Plant Flower with Bar and Small Pin Hole
* 
32606 Plant Flower with Bar and Small Pin Hole
Parts: Plant

As for balls with attachments or otherwise modified like the Harry Potter
ball, we can simply create a Ball, Modified category.

  Plain means without studs, hollow means studs can be inserted, and stud or studded
means with studs.

Yes on hollow, yes on studs. But plain is also frequently used to mean undecorated.
I think we should avoid that word in definitions when possible. And one other
quick note: I feel like it's exceptionally important to hold these definitions
down to a single line on the page. If not, that page could end up being just
crazy. So some of your lengthier definitions won't do.

And on the fitting naturally thing: in response to your feedback I removed those
references throughout the page and added a single sentence at the top of the
page. Made things cleaner.

  Baseplate - For parts thinner than plates, with cutting lines, covered
in studs or decorated with plain terrain scenery, game boards and other patterns,
and used as bases for building large models.

I didn't see the need to go into that much detail, honestly. And I'm
not sure what the reference to cutting lines is - I'm guessing you're
talking about the edges of the baseplate? I'm not sure that part is necessary,
but correct me if I need correction here.

  Belville

  5. The a and b split is to avoid confusion between the sets and the parts definitions.
I'm not sure about gear categories yet.

Categories on BrickLink are used interchangeably across item types. So Sticker
Sheet, for example, is used in Books, Gear, and Sets. That's why the definitions
have to be somewhat generic in these instances, it being generally understood
that when any item is categorized as Belville that it is related in some way
to the Belville theme.

Not a perfect system, but I can't change it.

  Bionicle

We're going to be in the same situation for all themed parts.

For the rest, some I used in some ways and some I didn't. If you feel strongly
about any of them, feel free to reopen the discussion.
 Author: bje View Messages Posted By bje
 Posted: Apr 23, 2020 03:54
 Subject: Re: Category Definitions Discussion - Parts B sect
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bje (1577)

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Thanks for the feedback, it really does help. I probably can only complete about
1 or 2 sections a day maximum, so if I am educated as to what it is that is
required, it is so much the better as I can then go a bit quicker. So please
forgive me if I do not always respond to your and other members' comments.
I am also trying not to get involved in minutae of individual detailled parts
in categories, being mindful of not moving parts too much around between categories.
Of course I do look for what is already in a particular category as well before
commenting on the definition.

Two things please:

1. I am just going to mention or request that you perhaps have a little think
about themed parts again. What is the requirement for a part to have a themed
category and should that requirement not be in the definition of what the parts
for that category is?

Consider:

 
Part No: 11650c01  Name: Vehicle, Base 5 x 10 x 2 1/2 with Mudguards and 6 x 2 Recessed Center with 3 Holes with (Same Color) Wheels Holders Attached
* 
11650c01 Vehicle, Base 5 x 10 x 2 1/2 with Mudguards and 6 x 2 Recessed Center with 3 Holes with (Same Color) Wheels Holders Attached
Parts: Vehicle, Base

As best I know, that is a part specific to the 4 Juniors sets as defined and
not found in ordinary run of the mill City or other themes.

If we have themed parts, and I fully agree, I do not want to sort through a million
decorated Duplo bricks to get a normal decorated brick, at least there should
be some indication somewhere as to why a certain design mold is under a themed
range. I do not think a thing that naturally fits in a certain theme, necessarily
needs or should have its on category as a range of parts.

That being said, it is sort of pointless to have a hundred themed categories
for parts. In thinking about it, I do honestly think that a Bellville part is
an oversized part specifically for that theme, but is that reasonably obvious
from the present definition? Also, for instance, back to the ball discussion,
I think Bionicle fans (*), would prefer Bionicle weapons to be under the Bionicle
theme, provided we clearly define what is a part for the Bionicle theme category
of parts.

(*) I only found out yesterday that this was one of TLG's most successful
themes ever. Grrr I am on intensive learning curve here after 10 years

2. The baseplate cutting issue does come up from time to time in the forum, I
thought it perhaps good to mention that these are not individually molded parts
like other LEGO parts.

I'll work through the changes in the definitions and the comments as well
as time allows or if I need to refer back to an issue once I get further along
the sections. You will see that cylinders and hemispheres gave me huge problems
Thanks again for the feedback.
 Author: randyf View Messages Posted By randyf
 Posted: Apr 23, 2020 14:48
 Subject: Re: Category Definitions Discussion - Parts B sect
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randyf (442)

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In Catalog, bje writes:

  That being said, it is sort of pointless to have a hundred themed categories
for parts. In thinking about it, I do honestly think that a Bellville part is
an oversized part specifically for that theme, but is that reasonably obvious
from the present definition? Also, for instance, back to the ball discussion,
I think Bionicle fans (*), would prefer Bionicle weapons to be under the Bionicle
theme, provided we clearly define what is a part for the Bionicle theme category
of parts.

(*) I only found out yesterday that this was one of TLG's most successful
themes ever. Grrr I am on intensive learning curve here after 10 years

Did you also learn that Bionicle was pretty much the theme that saved LEGO from
bankruptcy?

People love to hate on it, but without Bionicle, the modern company may have
never existed as it does now. Personally, I love the theme, and I love a toy
company that is constantly trying out new things.

Cheers,
Randy
 Author: edeevo View Messages Posted By edeevo
 Posted: Apr 23, 2020 15:24
 Subject: Re: Category Definitions Discussion - Parts B sect
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edeevo (11113)

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In Catalog, randyf writes:
  In Catalog, bje writes:

  That being said, it is sort of pointless to have a hundred themed categories
for parts. In thinking about it, I do honestly think that a Bellville part is
an oversized part specifically for that theme, but is that reasonably obvious
from the present definition? Also, for instance, back to the ball discussion,
I think Bionicle fans (*), would prefer Bionicle weapons to be under the Bionicle
theme, provided we clearly define what is a part for the Bionicle theme category
of parts.

(*) I only found out yesterday that this was one of TLG's most successful
themes ever. Grrr I am on intensive learning curve here after 10 years

Did you also learn that Bionicle was pretty much the theme that saved LEGO from
bankruptcy?

People love to hate on it, but without Bionicle, the modern company may have
never existed as it does now. Personally, I love the theme, and I love a toy
company that is constantly trying out new things.

Cheers,
Randy

This has always fascinated me... I have a fond appreciation for the Bionicle
theme nowadays, but I was a little too old to care about them much when they
initially came out (though my younger brothers loved them!)... & if TLG had never
tried to hit that market of "story-based, buildable action figures" for the young
men crowd, they never would have realized how successful it was going to be...
of course, then TLG got a little cocky about it and introduced Galidor not
long after the initial Bionicle success; so there can be drawbacks from trying
new things occasionally...


Life is Good.
~Ed.
 Author: randyf View Messages Posted By randyf
 Posted: Apr 23, 2020 15:19
 Subject: Re: Category Definitions Discussion - Parts B sect
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randyf (442)

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In Catalog, bje writes:

  1. I am just going to mention or request that you perhaps have a little think
about themed parts again. What is the requirement for a part to have a themed
category and should that requirement not be in the definition of what the parts
for that category is?

This is a difficult area to contend with. My personal opinion is that themed
parts really don't need to exist if we create appropriate generic part categories
that combine like items. I honestly believe it is possible.

For Bionicle, Hero Factory, Knights Kingdom II figures, Star Wars buildable figures,
Super Heroes buildable figures, etc., I really think it would be better to move
them all into the "Large Figure Part" main category that would then have subcategories
like "Large Figure Mask", "Large Figure Head", "Large Figure Armor", "Large Figure
Weapon", etc. Then the pieces in those generic categories could finally, at the
last level of categorization be tagged with "Bionicle", "Star Wars", "Hero Factory",
etc., if they only appeared in that theme.

So a Bionicle mask would be categorized as "Large Figure Part: Large Figure Mask:
Bionicle" and a Star Wars buildable figure head would be categorized as "Large
Figure Part: Large Figure Head: Star Wars". If a piece was used across themes,
such as
 
Part No: 90640  Name: Hero Factory Armor with Ball Joint Socket - Size 4
* 
90640 Hero Factory Armor with Ball Joint Socket - Size 4
Parts: Hero Factory
then it would not need the final category. It would just stay categorized as
"Large Figure Part: Large Figure Armor".

Cheers,
Randy
 Author: SylvainLS View Messages Posted By SylvainLS
 Posted: Apr 23, 2020 15:27
 Subject: Re: Category Definitions Discussion - Parts B sect
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SylvainLS (46)

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In Catalog, randyf writes:
  […]
This is a difficult area to contend with. My personal opinion is that themed
parts really don't need to exist if we create appropriate generic part categories
that combine like items. I honestly believe it is possible.
[… example for Large Figures parts …]

+1
 Author: leopard37 View Messages Posted By leopard37
 Posted: Apr 23, 2020 15:38
 Subject: Re: Category Definitions Discussion - Parts B sect
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In Catalog, SylvainLS writes:
  In Catalog, randyf writes:
  […]
This is a difficult area to contend with. My personal opinion is that themed
parts really don't need to exist if we create appropriate generic part categories
that combine like items. I honestly believe it is possible.
[… example for Large Figures parts …]

+1

++1
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 24, 2020 09:27
 Subject: Re: Category Definitions Discussion - Parts B sect
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StormChaser (566)

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In Catalog, bje writes:
  1. I am just going to mention or request that you perhaps have a little think
about themed parts again. What is the requirement for a part to have a themed
category and should that requirement not be in the definition of what the parts
for that category is?

It should not be difficult to guess: there is no requirement.

Yes, themed parts do not some reconsideration. This categories page you're
generously assisting with is just one of 27 Catalog Help pages we're planning
to update before 2020 ends. We've got seven of them done and this will make
the eighth.

At some point in that process themed parts will almost certainly have to be addressed
and the category definitions page can then be updated as necessary.
 Author: bje View Messages Posted By bje
 Posted: Apr 22, 2020 08:35
 Subject: Re: Category Definitions Discussion - Parts C sect
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Definitions – Section C parts

Cardboard Sleeve - For semi-rigid, individually-numbered sealed paper
boxes containing items like rubber bands, figure capes, cloth and other fragile
parts. Note 1

Chain - For parts that consist of length of connected rings used for fastening,
supporting or pulling. Note 2

Classic – (a) For sets from 1949-1971. Also for package-defined sets from
2015-present. (b) For parts from the period 1949 – 1957 known as Automatic
Binding Bricks and later LEGO Mursten, made from cellulose acetate and for use
with slotted bricks. Slotted bricks are completely hollow underneath with slits
on the sides. Note 3

Clikits – (a) For a themed line of sets featuring buildable, customizable
jewelry and accessories. (b) For parts from Clikits sets that are undecorated
jewelry, containers, frames, patterned plastic and cloth with connection points
and patterned paper inserts. Note 4

Clikits, Icon - For parts used as accessories to decorate Clikits parts
with connection points.

Clikits, Icon Accent - For parts used as accessories or embellishment
for Clikits Icons.

Cloth - For parts made of woven fibres.

Cockpit - For parts that form the construction of the enclosure surrounding
the pilot or driver seat of an aircraft or motor vehicle. Note 5

Cone - For parts with a round base and narrowing to a single stud on top,
or the inverse. Includes parts which have been halved horizontally and/or vertically
and requires assembly to complete the cone. Note 6

Container - For parts intended to be used for storage and their accessories.

Conveyor - For parts intended to be used as a continuous moving surface
for the transport of objects or goods. Note 7

Crane - For booms and jibs used in the construction of heavy lifting equipment.
Note 8

Cylinder and Hemisphere - For parts that are tube shaped or assembled
to form tube shapes as well as parts that are half balls and half round bricks.
Note 9


Notes:
1. Definition should include sealed, else probably not so much a sleeve as a
piece of cardboard with a number

2. The present links in Technic are also described by “linked shapes”.

3. The dates on these parts and sets differ, so the category definitions should
be split to accommodate this. Please check the dates for the sets. Define slotted
bricks as well as it only occur in this category, I think every thing else is
probably using grooved as descriptor.

4. Probably the separator should move to accessories human tools so as to not
include tools here. Again an a and b split for sets and parts.

5. The entire enclosure is the cockpit, not just the seat.

6. Not sure if these would be better defined as: “round and modified bricks with
a round base and narrowing towards the top, or the inverse”. That could dispense
with the assembly section and still provide continuity with what a round brick
and a modified brick is defined as.

7. Conveyors refer to the complete assembly including the belt/pipe/slide system

8. The parts in the section are not cranes by themselves.

9. Hemispheres with studs are better described as bricks than as balls, as per
the definitions of those categories.
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 25, 2020 00:02
 Subject: Re: Category Definitions Discussion - Parts C sect
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In Catalog, bje writes:
  Classic

I'm caught up now. This is the only one I had a comment on. Classic, as
a word, is utterly meaningless and I'm trying to get away from it. Some
of the items in the category are package-defined as Classic sets, so the category
will remain for those. The remaining sets will probably need to be moved to
a new category that better defines what they are.
 Author: bje View Messages Posted By bje
 Posted: Apr 25, 2020 08:34
 Subject: Category Definitions Discussion - Parts D sect
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bje (1577)

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I've stopped the split for sets and parts. I am not a DUPLO expert, so I'll
keep these generic to tie in with the main catalogue so as to avoid confusion
with categories in the main catalogue.


Definitions – Section D parts

Dino – For a themed line of sets and other items from 2012. Note 1

Dish - For items parabolic in shape used to direct radio waves , including
modified items. Note 2

Disney® ™- For items trademarked to or licensed from The Walt Disney Company.
Note 3

Door - For items that are flat, fixed at one edge and used to close the
entrance to something. Note 4.

Door Frame - For items structurally holding doors or glass. Note 5


Duplo - For Duplo-branded sets and related items. Note 6

Duplo, Aircraft - For Duplo items of the Aircraft, Tail and Propeller
categories. Note 7

Duplo, Animal - For Duplo items of the Animal , Air, Body Part, Dinosaur,
Land and Water categories. Note 8

Duplo, Baseplate - For Duplo items of the Baseplate and Baseplate, Road
and -Raised categories

Duplo, Boat - For Duplo items of the Boat category.

Duplo, Brick - For Duplo items of the Brick, -Arch, Modified, Round and
Slope and Slope, Curved Categories. Note 9

Duplo, Brick, Promotional - For Duplo items of the Brick, Promotional
category.

Duplo, Cloth - For Duplo items of the Cloth category.

Duplo, Doll - For items of clothing and other accessories intended to
be worn or used by Duplo Dolls. Note 10

Duplo, Figure Wear & Utensil - For Duplo items of the Minifigure Body
Wear, Head Gear and – Accessory, Shield, Utensil and Weapon categories. Note
11


Duplo, Food & Drink - For Duplo items of the Food & Drink category

Duplo, Furniture - For moveable household items intended for use by Duplo
figures.

Duplo, Plant - For Duplo items of the Plant and Plant Tree categories.

Duplo, Plate – For Duplo items of the Plate, Plate Decorated, - Modified
and - Round categories.

Duplo, Vehicle - For Duplo items of the Crane, Riding Cycle, Vehicle,
Vehicle Base, Wheel & Tire Assembly categories .


Notes:
1. We have animal, dinosaur with the same definition and I do not see items such
as figures or otherwise using this category. If this is just a set line change
to “For a themed line of sets from 2012”

2. Correctly, these are parabolic antennas or radio telescopes. The definition
should differentiate from crockery. Modified is defined already and saves the
category being created. The Scala dish should probably move to Scala parts

3. Not a parts issue, but Disney is a registered mark and BL is probably not
entitled to use it as a category name or something used to describe part/set
names for the BL catalogue, without the mark being acknowledged. Perhaps add
the fact that these are licensed themes. I am not sure if Disney is registered
everywhere, so the ® and ™ mark should be used, even when used for part descriptions.
That should aid members to know when we have items that are strictly enforced
for marks. The same goes for every other instance of Disney and probably every
other mark, including figure names such as Jango Fett™ or SpongeBob™.

4. Probably container doors should move here as should the garage doors and garage
door sections. A window glass is probably also an opening barrier set in a frame.

5. Probably the garage door frames and counterweights should move here. Glass
is defined already as being windows.

6. We are of course again assuming that everybody knows what Duplo is. Fully
40% of all Duplo parts, excluding vehicular and decorated, are in this category.
Probably there should be some cleanup of this. Consider categories that are
overheads rather like for instance an Animals category that could have ALL of
the animal categories in the main catalogue, similar to Duplo Bricks which contain
all of the Brick categories in the main catalogue. Probably having a Duplo category
with parts in it is akin to having a category called Part.

7. Trying to tie the main catalogue into the Duplo sub-catalogue with this. This
so that Duplo specific definitions need not be made, else there might be confusing
definitions across different sections of the catalogue.

8. Only Animal, Accessories are at present dealt with in the Duplo main category.
Probably a good time to introduce hyperlinks across the sections of the definitions
as well

9. Probably some of the decorated bricks should be moved to avoid confusion.

10. This might be a knowledge problem on my side, but are there specific furniture
items for Duplo Dolls, or must this be rather Duplo, Doll Accessory, similar
to the Bellville Figure Accessory, for consistency across sub parts of the catalogue?

11. Probably some cloth items will have to move .
 Author: StormChaser View Messages Posted By StormChaser
 Posted: Apr 25, 2020 23:53
 Subject: Re: Category Definitions Discussion - Parts D sect
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Excellent work as always. I'm all caught up and I've added some comments
below.

In Catalog, bje writes:
  Dino – For a themed line of sets and other items from 2012.

Even though we're not really working at the category level at the moment
(in a sense, anyway) this category should only be for package-defined Dino sets.
And the Dinosaurs category should only be for package-defined Dinosaurs sets.
So here a new category titled Dinosaur needs to be created and a number of items
in the Dino category need to be moved.

  Dish - For items parabolic in shape used to direct radio waves , including
modified items.

Except that some items in this category were not designed to direct radio waves,
but only to function as coverings. Also, since the Scala dish is used in other
themes, I disagree that it should go to the Scala themed category. I haven't
checked, but it was probably moved out of that category. Instead, the
part title should probably be updated, including the removal of the word Scala.

  Disney® ™- For items trademarked to or licensed from The Walt Disney Company.

Here the site should have an overall disclaimer somewhere about all trademarks
and copyrights. It is impractical to have the copyright mark or trademark in
every place in the catalog where these are used.

  Door Frame - For items structurally holding doors or glass.

I noticed that this category should be titled Door, Frame. Also, there is overlap
between this category and Window (which makes sense because some frames are used
for both doors and windows). So really, it needs to be retitled to Door and
Window Frame.

  Duplo, Aircraft - For Duplo items of the Aircraft, Tail and Propeller
categories.

I do like what you've done here, but decided not to go with it because if
there are changes in other categories, then the corresponding Duplo category
would have to be updated in definition and contents. We cannot know if future
administrators will do this, so it is more prudent to define each Duplo category
unto itself instead of tying it to another catalog category.

  batteries produce electricity, they are not used to store it.

I learned something. Thank you.

  Food & Drink

This is another category that is used catalog-wide. Like you, I focused only
on parts and forgot that. So I had to make the definition quite generic and
it may not be useful now for determining what should be included in the Parts:
Food & Drink category. Here are some of the 353 items categorized as Food &
Drink:

 
Set No: 8398  Name: BBQ Stand
* 
8398-1 (Inv) BBQ Stand
18 Parts, 1 Minifigure, 2009
Sets: Town: City: Food & Drink
 
Set No: 10037  Name: Breezeway Café {Cafe}
* 
10037-1 (Inv) Breezeway Café {Cafe}
163 Parts, 5 Minifigures, 2002
Sets: Town: Classic Town: Food & Drink: Legends
 
Part No: 33051  Name: Apple
* 
33051 Apple
Parts: Food & Drink
 
Minifig No: jred024s  Name: Jacket Red with Zipper - Red Arms - Blue Legs, Blue Cap with Arla Dairy Logo Pattern on Back (Sticker)
* 
jred024s (Inv) Jacket Red with Zipper - Red Arms - Blue Legs, Blue Cap with Arla Dairy Logo Pattern on Back (Sticker)
Minifigures: Town: Classic Town
 
Gear No: 852524  Name: Cookie Cutters Minifigure
* 
852524 Cookie Cutters Minifigure
Gear: Food & Drink
 
Gear No: 4201981  Name: Cup / Mug Belville
* 
4201981 Cup / Mug Belville
Gear: Food & Drink: Belville

  Friends . . . This really should not be a category that have parts.

Agreed that some, perhaps most or even all, of the Friends parts could go elsewhere.

  Glass - For items that are transparent or opague flat coverings fixed
on all ends in Windows and Door Frames

Except that not all glass is completely fixed. Some glass swivels within the
frame like a door. I did what I could with this definition.

  HO Vehicles - For vehicles and related items released from the mid 1950s
to the mid 1960s to HO scale

I think these would actually fit better into the Gear item type instead of the
Parts item type.
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 Author: bje View Messages Posted By bje
 Posted: Apr 25, 2020 08:39
 Subject: Category Definitions Discussion - Parts E sect
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Definitions – Section E parts

Electric - For items that control, transmits, conducts or receive electricity,
radio and IR signals, batteries, cameras and sensors;

Electric, Battery Box - For cases designed to hold portable electricity
producing devices and their accessories. Note 1

Electric, Light & Sound - For electrical items that produce visible light
and/or audible sounds and their accessories. Note 2

Electric, Motor - For items that changes electricity into motion for the
purpose of work, and their accessories. Note 3

Electric, Programmable - For advanced electronic devices that can perform
a range of tasks. Note 4

Electric, Train - For electrical items used with the 4.5V, 9V, 12V, RC
or other LEGO train systems.

Electric, Wire & Connector - For items designed to connect electrical
items over a distance and their accessories. Note 5

Electronics - For advanced electronic devices that can perform only a
single task.

Energy Effect - For items and multipacks that are the effects of energy
production, release or transformation such as flames, water, polymers and plasma.
Note 6


Notes:
1. Respectfully, batteries produce electricity, they are not used to store it.

2. Probably fibre optic cables are more for transmission than for light, consider
to move this to Electric or amend this definition to include light transmission.

3. Electrical only and there are accessories included in this category;

4. Devices that can only perform 1 task are not programmable. I do not know if
all of the parts in this category actually meet the definition of device, programmable
or even tasks.

5. Probably the transmission items should stay within the Electric definition.

6. Consider adding multipacks to line definitions. The polymers is to add slime
to the energy effects example.
 Author: bje View Messages Posted By bje
 Posted: Apr 25, 2020 16:30
 Subject: Re: Category Definitions Discussion - Parts FGH
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Definitions – Section F parts

Felt -
For items made from a pressed mass of fibers . Note 1

Fence - For items that are structures with posts for support, used to
divide open areas. Note 2

Flag - For items that have the function or the appearance of a cloth piece
for attachment to a pole on one side or molded flag and and pole assemblies.
Note 3

Foam - For items made of sponge rubber. Note 4

Food & Drink - For items that are figure-scale solid or liquid sustenance
Note 5

Friends - For a themed line of sets and related items. Note 6



Definitions – Section G parts

Garage
- For items unique to the type of building used to store automobiles
and their accessories. Note 7

Glass - For items that are transparent or opague flat coverings fixed
on all ends in Windows and Door Frames. Note 8


Definitions – Section H parts

Hinge - For items of modified bricks, plates and cylinders that connect
in pairs such that only one degree of movement is allowed when connected. Note
9


HO Vehicles - For vehicles and related items released from the mid 1950s
to the mid 1960s to HO scale. Note 10

Hook - For items that are curved at one end and function to catch hold
of objects and their jib mountings and accessories.

Hose - For pipes of varying lengths that can be bent and the couplings
of those pipes. Note 11

Hose, Pneumatic 4mm D. - For hollow hoses of varying lengths that transport
air for pneumatic functions and that are four millimeters in diameter.

Hose, Ribbed 7mm D. - For hollow, ribbed hoses of varying lengths that
are seven millimeters in diameter.

Hose, Rigid 3mm D. - For hollow, semi-rigid hoses of varying lengths that
are three millimeters in diameter.

Hose, Soft 3mm D. - For hollow, soft hoses of varying lengths that are
three millimeters in diameter.

Hose, Soft Axle - For solid, flexible hoses that have pin-like couplings
and are shaped like Technic axles.



Notes

1. The process of making felt does respectfully not really include water.

2. Door and Glass can also be construed as barriers to entry.

3. Respectfully, cloth pieces should not mount poles, it is against nature and
will probably look weird.

4. Similar to the definitions of cloth, felt etc. All parts are used in the process
of building sets, not just foam sponge parts.

5. There are no liquid items in the category.

6. This really should not be a category that have parts. All the parts in this
category can be moved to other categories such as plants or utensils.

7. Rather consider Door and Door Frames for these parts as the modified bricks
required in the modern variants are not part of this category so the parts in
the category cannot be used to construct a garage.

8. As opposed to a door which is designed to swivel.

9. All hinges should be movable on only 1 axis, else it is by definition not
a hinge.

10. Redundancy – HO Scale is the same thing as 1:87.

11. Respectfully, no LEGO item transports liquid and the terms excludes both
rigid and solid hoses from a hose part definition. Generally hoses have couplings
and joints
 Author: bje View Messages Posted By bje
 Posted: Apr 29, 2020 07:57
 Subject: Re: Category Definitions Discussion - Parts I - M
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There is no clear definition of the body of a minifigure, minidoll or microdoll.
The convention is that a body refers to the form without the head, thus including
the neck, trunk, hips, legs, arms and hands. Body parts are then every part of
the body excluding the head. The catalogue is also very specific about is included
in the assembly of a minifigure or minidoll, so accessories defined as body wear
are only those fitting around the neck or hips or on the feet. The torso assemblies
and legs assemblies keep to the conventions above. Please also consider how the
definitions of micro doll, mini doll and minifigures tie in with the overall
category definition of figures. I've removed references to figures for these
to avoid a weird definition such as “ the individual neck, trunk, hips, legs,
arms and hands of figures that are not mini dolls and micro dolls, scale model
figures, figure assemblies or any other figures other than what can be construed
as the standard trademarked minifigure”.



Definitions – Section J parts

Jumbo Bricks - For sets and related items for the 3+ age range that are
three times the size of standard LEGO bricks and not compatible with any other
standard bricks.

Definitions – Section L parts

Ladder & Bridge - For complete items, functioning as equipment, and their
accessories, that enable travel between two different elevations or across gaps.
Note 1

Large Figure Part - For component parts of buildable figures. Note
2


Lever - For throttles and their parts that moves around a fixed point
and are used to control machinery. Note 3

Definitions – Section M parts

Magnet - For items that contain a metal part able to attract other metal
parts to itself and accessories for those items. Note 4

Micro Doll, Body Part - For the bodies and the individual neck, trunk,
hips, legs, arms and hands of micro dolls. Note 5

Mini Doll, Body Part - For the individual neck, trunk, hips, legs, arms
and hands of mini dolls.

Mini Doll, Body Wear - For items that fit around the neck, legs assemblies
or on the feet of mini dolls. Most or all also fit minifigures and mini dolls.
Note 6

Mini Doll, Hair - For hair and hair/headgear combinations that are primarily
used on mini dolls. Most or all also fit minifigures and micro dolls.

Mini Doll, Head - For heads fitting on mini doll torso assemblies and
micro doll body parts.

Mini Doll, Headgear - For any type of covering for the head and head cover
accessories that are used primarily on mini doll heads. Most or all also fit
minifigure and micro doll heads.

Mini Doll, Legs Assembly - For complete hips and legs assemblies of mini
dolls.

Mini Doll, Torso Assembly - For complete neck, trunk, arms and hands assemblies
of mini dolls.

Minifigure, Body Part - For the individual neck, trunk, hips, legs, arms
and hands of minifigures. Note 7

Minifigure, Body Wear - For items that fit around the neck, hips or on
the feet of minifigures. Most or all also fit mini dolls and micro dolls. Note
8


Minifigure, Hair - For hair and hair/headgear combinations that that are
primarily used on minifigures. Most or all also fit mini dolls and micro doll
heads.

Minifigure, Head - For heads fitting on minifigure torso assemblies with
no modifications to the head.

Minifigure, Head, Modified – For heads fitting on minifigure torso assemblies
with modifications.

Minifigure, Headgear - For or any type of covering for the head and head
cover accessories that are used primarily on minifigures. Most or all also fit
mini dolls and micro doll heads.

Minifigure, Headgear Accessory - For removable accessories that attach
to minifigure, hair or – headgear. Note 9

Minifigure, Legs Assembly - For complete hips and legs assemblies of minifigures.

Minifigure, Shield - For defensive items, typically carried, that are
primarily used by minifigures. Most or all also can also be used by mini dolls.
Note 10

Minifigure, Torso - For the complete neck and trunk assemblies of minifigures.

Minifigure, Torso Assembly - For complete torso, arms and hands assemblies
of minifigures.

Minifigure, Utensil - For items that are carried and not body wear, are
intended primarily for minifigure use, and are not weapons. Most or all also
can also be used by mini dolls. Note 11

Minifigure, Weapon - For items carried and used in fighting intended primarily
for minifigure use. Most or all also can also be used by mini dolls. Note
12


Modulex, Brick - For bricks and modified bricks in the Modulex building
system, generally not compatible with any other standard bricks. Note 13

Modulex, Window - For windows an decorated windows used in the Modulex
building system.

Monorail - For track, train parts, and 9V electric, train items specific
to a single rail train system.Note 14

Motor, Non-Electric - For clockwork and flywheel motors and their accessories.
Note 15




Notes:
1. So to include the pivot and holder so these do not have to move to hinges
or modified plates/tiles. Also complete added so that part assemblies of bridges
etc are excluded and equipment added so certain bars and modified plates need
not be moved.

2. If these are all used for that category of sets, should they not be under
that definition? Also, consider renaming this entire category including the buildable
figures to “scale model figures” as that is a more accurate description of what
these are, consider adding the scale as well. All scale model figures are posed
in one way or the other. https://thedesignersassistant.files.wordpress.com/2012/11/scale-figure-comparison.png

3. Technically these are throttle levers, parts included to avoid moving those
to bars and cones also to differentiate from joints;

4. There are some parts presently under modified bricks that contain magnets
eg 388c*, are these going to be moved? Else this must rather be vehicle specific
or move to vehicles and trains.

5. See the general note at the start and also other individual definitions to
do with minifigures and mini dolls.

6. I've checked some of these parts and they do fit minifigures as well.
I've added micro dolls if the part can fit on the neck or head of those.

7. I've reverted to minifigure here for the time being, so that the cross
reference in all of the parts above in the mini doll and micro doll categories
is retained. If figures are to be the definitions, then change everything on
top of this section as well. Also, if we use figures then the hat for the piggy
bank under animal accessories should for instance move to to minifigure headgear.
So unless the title changes to figure, body part the minifigure is the thing
that defines what these parts are.

8. This to complement the same conventions as used for mini dolls and micro dolls.
All of what follows use the same conventions.

9. With respect, if it attached directly to the head, it would be headgear. The
accessory part should conceivably be only to accessorise the headgear, not the
head itself. If any of these also fit directly fit mini doll hair or mini doll
headgear then the modifier: “Most or all also fit mini doll hair and headgear”
should be added.

10. I introduce carry here as a modifier to differentiate utensils as well. I
am not sure if these can be fitted to micro dolls, if so, then include those
as well.

11. Utensils then are all items that are not weapons and not body wear. Again,
I am not sure about micro dolls.

12. Excluded war from the definition as by definition no LEGO part can depict
warfare. A weapon thus excludes utensils and body wear. Again, I am not sure
about micro dolls.

13. Bricks are defined. I'm still not there yet with parts that do not have
studs on top, but for the time being these are modified as well. The not compatible
part is added to be the same as for jumbo bricks. This is essentially the convention
I used for Duplo, again to prevent specific categories from getting in-category
definitions not compatible with the rest of the catalogue definitions.

14. Monorail is specific type of train system. Consider rather moving the motors
to Electric, Train so as to avoid having a cluttered definition. Otherwise, amend
the definition of Electric, Train to specifically exclude monorail items.

15. All of these motors are using the clockwork or friction motor design. These
motors are specific to toys. Non-electric can include pneumatic as well.
 Author: StormChaser View Messages Posted By StormChaser
 Posted: May 7, 2020 00:07
 Subject: Re: Category Definitions Discussion - Parts I - M
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In Catalog, bje writes:
  valuable input

Got these done. I've been line-editing the remaining sections as I go and
am done now with everything but the S and T sections.
 Author: bje View Messages Posted By bje
 Posted: May 12, 2020 12:48
 Subject: Re: Category Definitions Discussion - Parts S sect
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As requested the S and T sections to follow.

Quick discussion for slopes:

A slope can be viewed as a special modified brick (item with 4 straight sides
and studs on top) with at least one side of it being an angle. This precludes
some parts from being slopes altogether as anything without a stud on top will
then be a curve to allow for continuous or joined lines. So in this view a slope
is a brick with at least one side set at an angle and a curve would be anything
that is not a slope brick; or

A slope is a type of part all by itself, in which case the only differential
must be angles vs curves. In this view a slope is an item with angled sides,
with or without top studs. A sloped curve will then be an item with curved sides,
with or without top studs and with or without modification.

Curves as a stand alone category was not considered. An angle should refer to
a straight line not on the horizontal or vertical plane, and a curve to a line
which bends continuously with no straight parts. Given this I went with slopes
and curves being items by themselves, rather than to contort brick definitions
to fit a description or to create new categories.


Definitions – Section S parts

Scala, Figure Accessory - For items of clothing and other accessories
intended to be worn or used by Scala figures. Note 1

Slide - For items with a smooth, sloping side which allows quick travel
from higher to lower elevations. Note 2

Slope - For items with one or more sides angled from bottom to top, with
or without studs on top. Note 3

Slope, Curved - For items with one or more curved sides, with or without
studs on top. Note 4

Slope, Inverted - For items with one or more sides angled from top to
bottom and which may include an attachment or modification. Note 5

Soft Bricks - For sets and other items featuring large bricks and accessories
created from soft plastic and released from the late 1990s to the mid 2010s.
Note 6

Special Assembly – For items from specific sets which is an identifiably
complete usable part of the set including complete vehicles and complete larger
scale figures and – animals, but excluding buildings and recognized part assemblies.
Note 7

Spring - For items which are coiled, can be compressed and will return
to their usual shape once released. Note 8

Stairs - For items that a complete set of steps that leading from one
level to another, or for the individual steps in a stairs. Note 9

Sticker Over Assembly
- For stickers that require more than one part to complete
the adhesive surface. Note 10

Sticker Sheet – All of the stickers included in a set as attached to the
complete adhesive backing paper/s for that set. Note 11

String - For items which are thin lengths of cord. Note 12

String Reel / Winch - For spools or spool and crank assemblies using string
for hoisting and items which use string to function such as fire hoses, tow hooks,
and similar items. Note 13

Support - For items which function to hold or carry the weight of other
items or structures to stop those from falling. Note 14


Notes:
1. Used the same wording as for Belville, Figure Accessory

2. By definition, the support accessories are excluded and should rather be supports,
similar to stair supports. It is not just figures which use slides; slides are
often used in materials handling as well.

3. See opening notes. Hinges should move to the hinge category same as hinge
bricks etc.

4. See opening notes

5. The inverse is created by the angle, not the position of the studs or attachment.
Also include the modifier so as to avoid a category for modified slopes.

6. Soft materials can refer to felt, cloth or foam as well.

7. Vehicles for this includes planes, trains, boats and motor vehicles. Presumably
the definition of figure is sufficient to exclude complete minifigures from being
special assemblies. Part assemblies excluded so as to exclude wheel and tire
assemblies.

8. So as to exclude items such as rubber tires which also satisfies the definition
of compressed energy

9. The US definition is used throughout.

10. Note, the definitions are not alphabetical, followed the catalogue page rather.
This from the definition of a sticker which require a surface for adhesion.

11. The sticker sheet is the collective of all of the stickers as included in
sets on the original backing paper, so as to exclude single stickers from any
one set being in the definition.

12. With respect, the current definition is the definition of a cord, not a string

13. Removed the circular definitions of winches

14. Removed the circular reference to support.
 Author: bje View Messages Posted By bje
 Posted: May 13, 2020 07:54
 Subject: Re: Category Definitions Discussion - Parts P - R
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A word on plates:
Some plates are not complete in the number of studs as to the size of the plate.
See for example
 
Part No: 92593  Name: Plate, Modified 1 x 4 with 2 Studs without Groove
* 
92593 Plate, Modified 1 x 4 with 2 Studs without Groove
Parts: Plate, Modified
or what are currently some parts classed as tiles.
The TLG definition of a part being 1/3 high should be carried over and plates
should be standard if it has studs completely over it length and width. But
the modified plate section presents a problem if plates are only to be 1/3 high
inclusive of the modification.

Definitions – Section P Parts

Panel -
For items that have at least one flat surface to function as a divider
or wall, with or without studs on top.

Paper - For items made of paper or card. Note 1

Plant - For shrubs, stems, leaves, flowers, vines, roots, and related
items and accessories, excluding trees.

Plant, Tree - For plants with wooden trunks, including stumps. Note
2


Plastic - For items made of thin, flexible plastic sheets. Note 3

Plate -
For items which are one third the height of a brick with straight
sides, square corners and studs covering the entire top. Note 4

Plate, Modified - For plates that do not have studs entirely over the
top and/or include some attachment or shape modification which can make it higher.
Note 5

Plate, Round - For plates that have one or more rounded corners and with
or without attachments and/or modifications. Note 6

Pneumatic - For items that produce or use pressurized air to perform mechanical
functions and their accessories. Note 7

Projectile Launcher - For any item that serves the primary function of
launching a projectile, their accessories and projectiles made to fit.

Propeller - For items with two or more blades that spin round at speed
to provide movement or control for ships, boats and aircraft. Note 8


Definitions – Section R Parts

Riding Cycle -
For bicycles, motorcycles, scooters, tricycles and ATV's
and their accessories.

Ring - For circular items with or without attachments.

Road Sign - For items which are the unadorned backing of decorations such
as signs, notices, signboards or warnings. Note 9.

Rock - For items resembling single rocks or clusters of rocks, including
decorative items carved from rock, jewels, and rock-like ice formations.

Roof - For items primarily designed to protectively cover a structure
and their accessories. Note 10

Rubber Band & Belt - For elastic items and their accessories that are
typically used to perform a mechanical function in a model. Note 11



Notes:
1. Used the same wording as for felt, foam etc.

2. Trunk being the modifier here. Some leaves and top parts to move to the plant
category, unless tree leaves and stems are to be included in the tree definition?

3. Used the same wording as for felt, foam, paper etc.

4. See opening remarks, also to exclude modifications

5. See opening remarks, also to include modifications;

6. Round plates have round corners and modifications added unless new category
for modified round plates are made

7. Pneumatic uses pressurized air for mechanical function

8. Cowlings, housings etc should rather be under the aircraft or boat section,
see engine parts already there.

9. The undecorated parts respectfully does not actually function as the warning
or notice by itself. The decoration is required for the current definition,
which is then only applicable to decorated parts. What is in the category are
the plain backings used for the signage

10. These are only structural roofs

11. Elastic used as these bands and belts return to their original shape and
are not designed to be permanently stretched.
 Author: StormChaser View Messages Posted By StormChaser
 Posted: May 13, 2020 09:59
 Subject: Re: Category Definitions Discussion - Parts P - R
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StormChaser (566)

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In Catalog, bje writes:
  A word on plates:

I'm working on this now, but I have to say that this whole enterprise of
defining categories makes me think very much of this:

https://www.youtube.com/watch?v=LFrdqQZ8FFc

 Author: yorbrick View Messages Posted By yorbrick
 Posted: May 13, 2020 12:18
 Subject: Re: Category Definitions Discussion - Parts P - R
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  Propeller - For items with two or more blades that spin round at speed
to provide movement or control for ships, boats and aircraft. Note 8

What about submarines, spacecraft or land based vehicles such as high speed cars.
I don't think the definitions should be so focussed.

Then there are these types ...
 
Part No: 30078  Name: Propeller 6 Blade Fan 8 x 8
* 
30078 Propeller 6 Blade Fan 8 x 8
Parts: Propeller

Introduced as windmill / turbines.

If shorten the definition to say two of more blades that spin around. Even then
what about the individual blades that are listed there?
 Author: yorbrick View Messages Posted By yorbrick
 Posted: May 13, 2020 12:19
 Subject: Re: Category Definitions Discussion - Parts P - R
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yorbrick (1182)

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.
  
I'd shorten the definition to say two or more blades that spin around. Even then
what about the individual blades that are listed there?
 Author: StormChaser View Messages Posted By StormChaser
 Posted: May 13, 2020 14:07
 Subject: Re: Category Definitions Discussion - Parts P - R
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In Catalog, yorbrick writes:
  I don't think the definitions should be so focussed.

I've modified the Propeller definition to this:

For items with circularly-spinning blades, including accessories and component
parts.
 Author: yorbrick View Messages Posted By yorbrick
 Posted: May 13, 2020 16:19
 Subject: Re: Category Definitions Discussion - Parts P - R
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In Catalog, StormChaser writes:
  In Catalog, yorbrick writes:
  I don't think the definitions should be so focussed.

I've modified the Propeller definition to this:

For items with circularly-spinning blades, including accessories and component
parts.


 
Part No: 30194  Name: Minifigure, Utensil Tool Circular Blade Saw
* 
30194 Minifigure, Utensil Tool Circular Blade Saw
Parts: Minifigure, Utensil

 Author: bje View Messages Posted By bje
 Posted: May 13, 2020 13:10
 Subject: Re: Category Definitions Discussion - Plate
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In Catalog, bje writes:
New definition:
Plate - For items nearly identical in use to building bricks that are one
third as tall, have one or more studs, and for which all corners are square.


Sorry, but is it the intention that these parts and a few other similar ones
are to be moved to category plates as they all satisfy that definition?
 
Part No: 33909  Name: Tile, Modified 2 x 2 with Studs on Edge
* 
33909 Tile, Modified 2 x 2 with Studs on Edge
Parts: Tile, Modified
 
Part No: 92593  Name: Plate, Modified 1 x 4 with 2 Studs without Groove
* 
92593 Plate, Modified 1 x 4 with 2 Studs without Groove
Parts: Plate, Modified
 
Part No: 88646  Name: Tile, Modified 3 x 4 with 4 Studs in Center
* 
88646 Tile, Modified 3 x 4 with 4 Studs in Center
Parts: Tile, Modified
 
Part No: 35470  Name: Tile, Modified 3 x 5 Cloud
* 
35470 Tile, Modified 3 x 5 Cloud
Parts: Tile, Modified
 
Part No: 6205  Name: Tile, Modified 6 x 16 with Studs on Edges
* 
6205 Tile, Modified 6 x 16 with Studs on Edges
Parts: Tile, Modified
 
Part No: 34103  Name: Plate, Modified 1 x 3 with 2 Studs (Double Jumper)
* 
34103 Plate, Modified 1 x 3 with 2 Studs (Double Jumper)
Parts: Plate, Modified
 
Part No: 87580  Name: Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)
* 
87580 Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)
Parts: Plate, Modified

The concern I have is that we are moving away from the plate being a representation
of a brick in 1/3 height as TLG defines it as well. There are at present no bricks
with missing studs along the top, so should plates not be the same? IOW if there
are studs missing, we class that as normal for a plate and not a modification.
Or am I just reading the definition wrong (in which case it is probably not meeting
expectations )

This does impact on what tiles are as well (plates with no studs essentially),
so best to get it out of the way.
 Author: bje View Messages Posted By bje
 Posted: May 13, 2020 13:12
 Subject: Re: Category Definitions Discussion - Plate
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In Catalog, bje writes:
  In Catalog, bje writes:

  
 
Part No: 35470  Name: Tile, Modified 3 x 5 Cloud
* 
35470 Tile, Modified 3 x 5 Cloud
Parts: Tile, Modified

which will be a round plate
 Author: StormChaser View Messages Posted By StormChaser
 Posted: May 13, 2020 14:06
 Subject: Re: Category Definitions Discussion - Plate
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In Catalog, bje writes:
  Plate - For items nearly identical in use to building bricks that are one
third as tall, have one or more studs, and for which all corners are square.


Thank you for pointing out the problem with the current definition. We'll
keep hammering away at these until we get them right.

I have modified it to this:

For items similar to building bricks that are one third as tall, have top surfaces
evenly covered in studs, and for which all corners are square.


Will this better define what should be a plate?
 Author: bje View Messages Posted By bje
 Posted: May 13, 2020 12:43
 Subject: Re: Category Definitions Discussion - Parts V-
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I'll hopefully have the final T-section ready by tomorrow

Definitions – Section V Parts

Vehicle - For a sub-theme of Legoland sets that featured vehicles released
from the early 1960s to the late 1970s. Note1

Vehicle, Base - For items that function as a platform on which to construct
vehicles and their accessories. Note 2

Vehicle, Mudguard - For items that combined make up the wheel well, fender
and fender flares on vehicles and the mudguards on riding cycles. Note 3


Definitions – Section W Parts

Wedge - For items other than plates that have a narrow edge at one end
and a wider edge at the other end. Note 4

Wedge, Plate - For plates that have a narrow edge at one end and a wider
edge at the other end. Note 5

Wheel - For items that is a solid disk or a rigid circular ring connected
by spokes to a hub, designed to turn around an axle passed through the centre,
which may or may not fit tire and tread. Note 6

Wheel & Tire Assembly - For items that are a combination of a wheel and
a tire.

Wheel, Accessory - For items that are parts of entire wheels, wheel axles
and other wheel accessories such as wheel covers.

Window - For the frame of an opening in a structure or vehicle that afford
the ability to see out. Note 7

Windscreen - For items used as the front window glass in vehicles, aircraft,
ships and trains for wind protection and which are not panels.

Wing - For items that perform the function of flight support for aircraft.
Note 8

Definitions – Section Miscellaneous

(Other) - For items that are specific to the BrickLink catalog. Note
9


Notes:
1. Certainly this cannot be correct in terms of parts for vehicles? Consider
adding parts specific to vehicles as well.

2. A vehicle is by definition only something with wheels for land transport.
Consider rather moving the aircraft section out.

3. Vehicles do not have mud guards, so the combination of parts that make up
the wheel well and its cover (fender, fender flares) are used by definition.
There are presently no parts that make up a quarter panel. Mudguards are only
in use by cycles by definition. Some of the fast food racer parts are bases?

4. To avoid the circular definition. Unless stated as bricks, modified bricks,
slopes, inverted slopes, etc it is maybe easier to just exclude plates from being
wedges.

5. To avoid the circular definition.

6. The hub is only the thing to which spokes are connected and is not for all
wheels. Also, not all wheels get tire and tread (trolley wheels).

7. The opening itself is generally accepted as the window and the frame into
which the glass is placed is the window frame. I might still be better to combine
these with door frames as just frames.

8. Flight management is, respectfully, performed by rudders and ailerons

9. The death knell of a good catalogue – other?? Good thing they are last Those
are only BrickLink entries.
 Author: SylvainLS View Messages Posted By SylvainLS
 Posted: May 13, 2020 13:44
 Subject: Re: Category Definitions Discussion - Parts V-
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SylvainLS (46)

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In Catalog, bje writes:
  […]
Wheel - For items that is a solid disk or a rigid circular ring connected
by spokes to a hub, designed to turn around an axle passed through the centre,
which may or may not fit tire and tread. Note 6

Potential problem with “axle”: it could be understood as “Technic axle.”
Maybe it should be amended with examples, like “(Technic axle, Technic pin, or
wheel pin).”


  […]
2. A vehicle is by definition only something with wheels for land transport.
Consider rather moving the aircraft section out.

By which definition?

A vehicle is a means of transporting, carrying, something or someone. I don’t
see anything preventing vehicle to be used for aircrafts or boats.

Indeed, this is from WP ( https://en.wikipedia.org/wiki/Vehicle ):
“A vehicle (from Latin: vehiculum[1]) is a machine that transports people or
cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars,
trucks, buses), railed vehicles (trains, trams), watercraft (ships, boats), amphibious
vehicles (screw-propelled vehicle, hovercraft), aircraft (airplanes, helicopters)
and spacecraft.[2]”
The references are [1] OED and [2] MacMillan Contemporary Dictionary.
 Author: bje View Messages Posted By bje
 Posted: May 13, 2020 13:57
 Subject: Re: Category Definitions Discussion - Parts V-
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In Catalog, SylvainLS writes:
  In Catalog, bje writes:
  […]
Wheel - For items that is a solid disk or a rigid circular ring connected
by spokes to a hub, designed to turn around an axle passed through the centre,
which may or may not fit tire and tread. Note 6

Potential problem with “axle”: it could be understood as “Technic axle.”
Maybe it should be amended with examples, like “(Technic axle, Technic pin, or
wheel pin).”

Hmm, you are right, I was trying to move away from the hub idea. Maybe leave
off the axle part altogether then:
Wheel - For items that is a solid disk or a rigid circular ring connected

  
  by spokes to a hub, designed to turn, which may or may not fit tire and tread.

  

  […]
2. A vehicle is by definition only something with wheels for land transport.
Consider rather moving the aircraft section out.

By which definition?

A vehicle is a means of transporting, carrying, something or someone. I don’t
see anything preventing vehicle to be used for aircrafts or boats.

Indeed, this is from WP ( https://en.wikipedia.org/wiki/Vehicle ):
“A vehicle (from Latin: vehiculum[1]) is a machine that transports people or
cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars,
trucks, buses), railed vehicles (trains, trams), watercraft (ships, boats), amphibious
vehicles (screw-propelled vehicle, hovercraft), aircraft (airplanes, helicopters)
and spacecraft.[2]”
The references are [1] OED and [2] MacMillan Contemporary Dictionary.

Vehicle noun (MACHINE)
B1 [ C ] formal
a machine, usually with wheels and an engine, used for transporting people or
goods on land, especially on roads
Cambridge English Dictionary set to US English specifically

Also, we have aircraft and boat sections, which presumably should exclude those
from being in another section.
 Author: SylvainLS View Messages Posted By SylvainLS
 Posted: May 13, 2020 14:26
 Subject: Re: Category Definitions Discussion - Parts V-
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In Catalog, bje writes:
  […]
Wheel - For items that is a solid disk or a rigid circular ring connected
by spokes to a hub, designed to turn, which may or may not fit tire and tread.

Hmm, those are wheels:

 
Part No: 874  Name: Vehicle, Tractor Chassis Steering Wheel
* 
874 Vehicle, Tractor Chassis Steering Wheel
Parts: Vehicle
 
Part No: 3736  Name: Technic, Steering Pulley Large
* 
3736 Technic, Steering Pulley Large
Parts: Technic, Steering
 
Part No: 2741  Name: Technic, Steering Wheel Large
* 
2741 Technic, Steering Wheel Large
Parts: Technic, Steering
 
Part No: 2819  Name: Technic, Steering Wheel Small, 3 Studs Diameter
* 
2819 Technic, Steering Wheel Small, 3 Studs Diameter
Parts: Technic, Steering
 
Part No: 30633  Name: Windscreen 4 x 6 x 4 Canopy with Hinge
* 
30633 Windscreen 4 x 6 x 4 Canopy with Hinge
Parts: Windscreen

and fit your description but I’m not sure we’d want them in the Wheel category


  
  
  […]
2. A vehicle is by definition only something with wheels for land transport.
Consider rather moving the aircraft section out.

By which definition?

A vehicle is a means of transporting, carrying, something or someone. I don’t
see anything preventing vehicle to be used for aircrafts or boats.

Indeed, this is from WP ( https://en.wikipedia.org/wiki/Vehicle ):
“A vehicle (from Latin: vehiculum[1]) is a machine that transports people or
cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars,
trucks, buses), railed vehicles (trains, trams), watercraft (ships, boats), amphibious
vehicles (screw-propelled vehicle, hovercraft), aircraft (airplanes, helicopters)
and spacecraft.[2]”
The references are [1] OED and [2] MacMillan Contemporary Dictionary.

Vehicle noun (MACHINE)
B1 [ C ] formal
a machine, usually with wheels and an engine, used for transporting people or
goods on land, especially on roads
Cambridge English Dictionary set to US English specifically

Dang. No one ever agree with anyone, not even lexicologists.

(French “véhicule” (the etymon) admits the “extended” usages.)


  Also, we have aircraft and boat sections, which presumably should exclude those
from being in another section.

Okay.
 Author: SylvainLS View Messages Posted By SylvainLS
 Posted: May 13, 2020 14:28
 Subject: Re: Category Definitions Discussion - Parts V-
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In Catalog, SylvainLS writes:
  […]

 
Part No: 30663  Name: Vehicle, Steering Wheel Small, 2 Studs Diameter
* 
30663 Vehicle, Steering Wheel Small, 2 Studs Diameter
Parts: Vehicle

not 30633
 Author: bje View Messages Posted By bje
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 Subject: Re: Category Definitions Discussion - Parts V-
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In Catalog, SylvainLS writes:
  In Catalog, bje writes:
  […]
Wheel - For items that is a solid disk or a rigid circular ring connected
by spokes to a hub, designed to turn, which may or may not fit tire and tread.

Hmm, those are wheels:

 
Part No: 874  Name: Vehicle, Tractor Chassis Steering Wheel
* 
874 Vehicle, Tractor Chassis Steering Wheel
Parts: Vehicle
 
Part No: 3736  Name: Technic, Steering Pulley Large
* 
3736 Technic, Steering Pulley Large
Parts: Technic, Steering
 
Part No: 2741  Name: Technic, Steering Wheel Large
* 
2741 Technic, Steering Wheel Large
Parts: Technic, Steering
 
Part No: 2819  Name: Technic, Steering Wheel Small, 3 Studs Diameter
* 
2819 Technic, Steering Wheel Small, 3 Studs Diameter
Parts: Technic, Steering
 
Part No: 30633  Name: Windscreen 4 x 6 x 4 Canopy with Hinge
* 
30633 Windscreen 4 x 6 x 4 Canopy with Hinge
Parts: Windscreen

and fit your description but I’m not sure we’d want them in the Wheel category


Me neither, Let me sleep on it though
  

snip

  
Dang. No one ever agree with anyone, not even lexicologists.

(French “véhicule” (the etymon) admits the “extended” usages.)

And in Afrikaans (voertuig) any mobile machine used for transport.... which can
makes things easier or more difficult

  
 Author: bje View Messages Posted By bje
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 Subject: Re: Category Definitions Discussion - Parts T sect
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T section

My apologies for the lateness of these, I really struggled with Technic and had
to gain a fair bit of mechanical and other knowledge in a very short time. I
should have actually started with those definitions in hindsight

I mentioned my problems with tail parts in other posts. For the time being though
I went with tiles and wedges modified by a fin, so as to cut out issues with
round bricks that perform a similar function.


Tail - For tiles and wedges modified by a fin and that function as the
rear section of aircraft, including rockets.

Tap - For items that control the flow of liquid using a valve. Note
1


Technic, Axle - For bars with one or more grooved sides. Note 2

Technic, Brick - For bricks that have holes through the side primarily
used in Technic sets.

Technic, Connector - For modified bushes and adaptors that are used as
sockets for pins and axles, primarily in Technic sets. Note 3

Technic, Disk - For flat, circular items with a center hole primarily
used in Technic sets. Note 4

Technic, Figure Accessory - For items of clothing and other accessories
intended to be worn or used by Technic figures.

Technic, Flex Cable
- For tensioned cables and their accessories used primarily
in Technic sets. Note 5

Technic, Gear
- For wheels and their accessories that have teeth around the
edge and are used, primarily in Technic sets, to control power to moving parts.
Note 6

Technic, Liftarm - For modified Technic bricks with rounded corners used
as structural beams, primarily in Technic sets. Note 7

Technic, Link - For items that make the rigid joints in linkages or items
used to make continuous track systems and are used primarily in Technic sets.
Note 8

Technic, Panel -
For panels modified by having pin holes and used primarily
in Technic sets

Technic, Pin - For connectors that are used as plugs, primarily in Technic
sets. Note 9

Technic, Plate
- For plates and round plates modified with holes in the top
surface, that are primarily used in Technic sets. Note 10

Technic, Shock Absorber -
For items that absorb and dampen excessive vibrations
and are primarily used in Technic sets.

Technic, Steering – For item assemblies and their component parts that
are used for controlling direction, and used primarily in Technic sets. Note
11


Throwing Disk - For flat, circular items designed to be tossed through
the air.

Tile - For plates modified such that there are no studs on or other modifications
top. Note 12

Tile, Modified
- For tiles that include an attachment or modification.

Tile, Promotional - For tiles with a pattern intended to promote a location,
event, or other thing deemed worthy of promotion.

Tile, Round
- For tiles that have one or more rounded corners, with or without
attachments or modifications.

Tire & Tread - For the rubber rings designed to fit on the outer edge
of a wheel, which may also be decorated with an anti-slip pattern. Note 13

Train, Track - For the rails upon which trains travel. Note 14

Turntable - For items designed with a motionless housing or base and a
part which provides for rotation, including accessories of such items. Note
15


Notes:
1. The US definition of a faucet can then include taps, spigots and mixer valves

2. Axles do not allow for connection, they allow turning motion. Also, bars are
defined as rods already, this more being a specially modified bar probably.

3. Socket used in the sense of female adaptor and adaptor used in the sense of
connecting differing parts or changing direction through a connection.

4. US definition of a disk, holes are the same as for bricks, which are also
not specified as Technic holes.

5. Flexible cables generally refers to a type of electrical cable. It is my understanding
that these cables and their accessories generally are used more like guy-wires,
the accessories obviously to provide the tensioning mechanism.

6. To avoid the circular gearing.

7. To avoid Technic bricks being classed as beams as those can have the same
function. Technic bricks defined as having holes through the sides. Don't
know if the definition must include a mention of the thickness of these items.

8. To avoid the circular definition, also there are two types of items in this
category.

9. Plug used in the sense of the male adaptor for the socket types under connectors
or brick holes.

10. Plate as defined with squared corners, round plate as defined with rounded
corners. Holes same as for bricks.

11. To avoid the circular definition.

12. Plate already defined as square corners

13. To avoid the idea of cushioning by shock absorbers, also the tread is the
pattern. Followed the US definition of a tyre.

14. Some rail track parts are flexible

15. Rotation rather than spinning as some of these parts are not free moving.
 Author: StormChaser View Messages Posted By StormChaser
 Posted: May 25, 2020 10:23
 Subject: Re: Category Definitions - Update
 Viewed: 46 times
 Topic: Catalog
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StormChaser (566)

Location:  USA, Oklahoma
Member Since Contact Type Status
Sep 10, 2002 Contact Member Seller
Buying Privileges - OKSelling Privileges - OK
Store Closed Store: Penultimate Harbinger
In Catalog, StormChaser writes:
  As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

This morning I had two different people ask via PM that we delay implementing
these new definitions for item types and categories so that we could discuss
them further.

I see three paths we could take from here:

1. Make these official in one week from today, but not move anything yet.
Instead, only move things as part of projects on the roadmap.

2. Make these official and immediately begin allowing limited movements
of item types and categories as necessary.

3. Delay making these definitions official.

My thought is that these definitions will not be perfect. They must be field-tested
and will change over time as flaws are discovered. They have been delayed for
20 years and I'm not overly thrilled about further delays.

But I also understand that the last few months have been an exceptionally busy
time for sellers, so many sellers simply haven't had time to consider or
comment on the definitions.

So my preference is for the first option from the list above. What's yours?
 Author: Stellar View Messages Posted By Stellar
 Posted: May 25, 2020 11:06
 Subject: Re: Category Definitions - Update
 Viewed: 18 times
 Topic: Catalog
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Stellar (3482)

Location:  Spain, Comunidad Valenciana
Member Since Contact Type Status
Sep 24, 2015 Contact Member Seller
Buying Privileges - OKSelling Privileges - OK
Store: Stellar Bricks
BrickLink Discussions Moderator (?)
In Catalog, StormChaser writes:
  In Catalog, StormChaser writes:
  As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

This morning I had two different people ask via PM that we delay implementing
these new definitions for item types and categories so that we could discuss
them further.

I see three paths we could take from here:

1. Make these official in one week from today, but not move anything yet.
Instead, only move things as part of projects on the roadmap.

2. Make these official and immediately begin allowing limited movements
of item types and categories as necessary.

3. Delay making these definitions official.

My thought is that these definitions will not be perfect. They must be field-tested
and will change over time as flaws are discovered. They have been delayed for
20 years and I'm not overly thrilled about further delays.

But I also understand that the last few months have been an exceptionally busy
time for sellers, so many sellers simply haven't had time to consider or
comment on the definitions.

So my preference is for the first option from the list above. What's yours?

Yes, it is okay, if we don't start using them we will not know if they are
as we want them to be.
 Author: jennnifer View Messages Posted By jennnifer
 Posted: May 25, 2020 11:22
 Subject: Re: Category Definitions - Update
 Viewed: 32 times
 Topic: Catalog
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jennnifer (3531)

Location:  USA, Illinois
Member Since Contact Type Status
Sep 8, 2009 Contact Member Seller
Buying Privileges - OKSelling Privileges - OK
Store: Old Grey Bricks
In Catalog, StormChaser writes:
  In Catalog, StormChaser writes:
  As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

This morning I had two different people ask via PM that we delay implementing
these new definitions for item types and categories so that we could discuss
them further.

I see three paths we could take from here:

1. Make these official in one week from today, but not move anything yet.
Instead, only move things as part of projects on the roadmap.

2. Make these official and immediately begin allowing limited movements
of item types and categories as necessary.

3. Delay making these definitions official.

My thought is that these definitions will not be perfect. They must be field-tested
and will change over time as flaws are discovered. They have been delayed for
20 years and I'm not overly thrilled about further delays.

But I also understand that the last few months have been an exceptionally busy
time for sellers, so many sellers simply haven't had time to consider or
comment on the definitions.

So my preference is for the first option from the list above. What's yours?

Thanks for being so responsive about this issue! I am comfortable with Option
1 as it keeps things moving forward and respects the work that has already been
done. And, I would be very relieved to know that parts won't be moving around
yet without further time (and maybe discussion.)

Keep up the great work,
Jen
 Author: randyf View Messages Posted By randyf
 Posted: May 25, 2020 14:04
 Subject: Re: Category Definitions - Update
 Viewed: 35 times
 Topic: Catalog
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randyf (442)

Location:  USA, Ohio
Member Since Contact Type Status
Sep 16, 2009 Member Does Not Allow Contact Seller
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Store Closed Store: The Bricking Spectre
BrickLink Catalog Administrator (?)
In Catalog, StormChaser writes:
  In Catalog, StormChaser writes:
  As part of the larger roadmap project of updating catalog guidelines, we anticipate
making this page official on or before June 1st, 2020:

This morning I had two different people ask via PM that we delay implementing
these new definitions for item types and categories so that we could discuss
them further.

I see three paths we could take from here:

1. Make these official in one week from today, but not move anything yet.
Instead, only move things as part of projects on the roadmap.

2. Make these official and immediately begin allowing limited movements
of item types and categories as necessary.

3. Delay making these definitions official.

My thought is that these definitions will not be perfect. They must be field-tested
and will change over time as flaws are discovered. They have been delayed for
20 years and I'm not overly thrilled about further delays.

But I also understand that the last few months have been an exceptionally busy
time for sellers, so many sellers simply haven't had time to consider or
comment on the definitions.

So my preference is for the first option from the list above. What's yours?

As I have been swamped myself in inventories work and rewriting help pages, I
haven't had the time I would have liked to go into these in detail myself.

I would be perfectly fine with Option 1 for now as it acknowledges that changes
are coming and actually puts into place the large amount of work that you and
a few others have been doing on it. This option gives us all time to refine the
categories and see what hypothetical movements of items would mean to the refinement.

Cheers,
Randy