Property talk:P5008

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on focus list of Wikimedia project
property to indicate that an item is of particular interest for a Wikimedia project. This property does not add notability. Items should not be created with this property if they are not notable for Wikidata. See also P6104, P972, P2354.

Represents	WikiProject focus list (Q51539995)
Data type	Item
Usage notes	This property does not add notability to items. Items should not be created with this property if not otherwise notable for Wikidata. Don't use it when querying another property returns a comparable list.
Example	Derek Walcott (Q132701) → Black Lunch Table (Q28781198) Susanne S. Renner (Q98268) → PlantsAndPeople (Q31805038) Cornelius Gurlitt (Q15143412) University of Washington Department of Scandinavian Studies (Q98429907) → WikiProject PCC Wikidata Pilot/University of Washington (Q98970039)
See also	catalog (P972), maintained by WikiProject (P6104), has list (P2354)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Database reports/Constraint violations/P5008 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,120,037 Main statement 1,120,015 >99.9% of uses Qualifier 4 <0.1% of uses Reference 18 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Value type “WikiProject (Q16695773)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value WikiProject (Q16695773) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P5008#Value type Q16695773, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P5008#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200), Wikibase property (Q29934218): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P5008#Entity types

Discussion

• I object to this property being implemented without consensus. I will not use this useless property. Unacceptable. BrillLyle (talk) 07:40, 4 April 2018 (UTC)
  • @BrillLyle: It looks like there is some relevant discussion going on at Wikidata:Properties_for_deletion#Wikidata_project_(P4570) ·addshore· ^{talk to me!}

"Don't use it when querying another property will give a comparable list."

Could this sentence be clarified? It's a bit vague. Thank you! --CKThomas

@CKThomas: This is a belated reply, but I understand it to mean that if, say, you're working on an article about a university, you don't generally need to add this property, because the university will have "instance of" -> "university", and that'll mean that it'll show up in the higher education project's focus list already, making this property redundant. Cheers, {{u|Sdkb}} ^talk 17:03, 30 March 2023 (UTC)

Remove "one-of constraint"

The one-of constraint (Q21510859) on this property does not scale. I suggest to remove it from this property, and rely on the already existing value-type constraint (Q21510865) only which may or may not be tweaked a bit (using WikiProject focus list (Q51539995) instead of WikiProject (Q21025364) as a value, which would require some changes in focus list items as well [1]). Thoughts? —MisterSynergy (talk) 12:20, 6 November 2019 (UTC)

Besides, I don't see an advantage of doing that.

The item seems somewhat ill-defined. It's a subclass of "Wikiproject".

If there are just one or two items with the value (e.g. on the notorious Basshunter) it's unlikely an actual focus list.

How do we determine that the focus list is no longer relevant? --- Jura 12:42, 6 November 2019 (UTC)

I don't understand most of that, your comment is too short:

• You don't see an advantage in doing what? Removing the "one-of constraint", changing the "value type constraint" to WikiProject focus list (Q51539995), or something else?
• Which item is ill-defined? If WikiProject focus list (Q51539995), then I would agree. Yet, as there is also maintained by WikiProject (P6104) for WikiProject items as value type, I think it would be better to limit on focus list of Wikimedia project (P5008) to actual list type values.
• Not sure how the third and forth line of your comment relate to this topic.

So, can you please clarify? Thanks, MisterSynergy (talk) 12:59, 6 November 2019 (UTC)

It refered to your proposal to replace the one-of-constraint with a type constraint. Sorry about the stray word that remained after I re-organized the text .. ;)

I don't see how P6104 is relevant here.

Focus lists are meant to help people develop content .. if that isn't done, the statements are no longer needed. If there is just one or two items on such a focus lists, the property isn't correctly used. --- Jura 13:06, 6 November 2019 (UTC)

Well, the disadvantage of the "one-of constraint" is that we do not have a closed (and relatively short) list of candidates. Anyone can create new focus lists and add them here, and at some point the software will not be able to handle all the qualifiers. In other words: this constraint type does not scale. The "value type constraint" does not have this problem, but allows the same sort of oversight.
Items can be permanently on focus lists, as content development is not something necessarily something which is being finish within a confined timeframe. So, whether or not the statements are "no longer needed" is difficult to decide, and they do not really harm anyone. —MisterSynergy (talk) 13:11, 6 November 2019 (UTC)

I have removed this constraint, as usage of the property may be tracked via "list of values".--GZWDer (talk) 11:32, 11 March 2020 (UTC)

It doesn't seem to work. There are clear misuses of the property such as with Q66895890 that don't get identified that way. These otherwise get unnoticed. --- Jura 11:49, 11 March 2020 (UTC)

How is it a misuse? "focus list" may be a stub, if it is well maintained.--GZWDer (talk) 05:55, 12 March 2020 (UTC)

Removal of 'as main value' property scope constraint

I want to use P5008 as a qualifier of is a list of (P360) for wikipedia Women in Red redlist items - https://w.wiki/CTb - such as at Q65184008#P360, where the qualifiers gender=female, occupation=psychologist and crucially "on focus list of Wikimedia project"=Women in Red identify the set of items we expect to find in the list.

Is there a good reason to retain the 'as main value' property scope when this use case demonstrates a valid use of the property as a qualifier? --Tagishsimon (talk) 03:45, 23 November 2019 (UTC)

• Such a P5008 qualifier does not really qualify the mainsnak value; thus, placing it in the qualifiers does not seem to be appropriate
• P5008 includes the entire item to a WikiProject focus list, not just single statements
• It is meant to provide simple access to the list, with "?item wdt:P5008 wd:Qxxx"; even SPARQL beginners can get this right in many cases. If we now start to allow qualifier use, one needs to use UNION and this would complicate things a lot for list users.

I don't think we should change this constraint. --MisterSynergy (talk) 09:57, 23 November 2019 (UTC)

In focus of project or in list or maintained...?

What's clear difference from maintained by WikiProject (P6104)? --Infovarius (talk) 12:04, 8 June 2022 (UTC)

related discussion: Wikidata_talk:WikiProjects#Consistency_in_tagging_WikiProjects_via_P5008_and/_or_P6104 - Valentina.Anitnelav (talk) 12:46, 7 July 2023 (UTC)