Property talk:P126

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maintained by
person or organization in charge of keeping the subject (for instance an infrastructure) in functioning order

Represents	operator (Q29933786)
Data type	Item
Domain	fixed construction (Q811430) (note: this should be moved to the property statements)
Allowed values	organization (Q43229) (note: this should be moved to the property statements)
Example	IUCN Red List (Q32059) → International Union for Conservation of Nature (Q48268) National Register of Historic Places (Q3719) → National Park Service (Q308439) Kyrkbron (Q3603778) → Umeå Municipality (Q507709)
Tracking: same	no label (Q42533426)
Tracking: usage	Category:Pages using Wikidata property P126 (Q31956575)
See also	owned by (P127), operator (P137), maintenance method (P6440), handled, mitigated, or managed by (P11738)
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/P126 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 585,237 Main statement 585,097 >99.9% of uses Qualifier 120 <0.1% of uses Reference 20 <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 “organization (Q43229), fictional organization (Q14623646), human (Q5), position (Q4164871), facility (Q13226383), project (Q170584), government program (Q22222786)”: This property should use items as value that contain property “instance of (P31), subclass of (P279)”. On these, the value for instance of (P31), subclass of (P279) should be an item that uses subclass of (P279) with value organization (Q43229), fictional organization (Q14623646), human (Q5), position (Q4164871), facility (Q13226383), project (Q170584), government program (Q22222786) (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/P126#Value type Q43229, Q14623646, Q5, Q4164871, Q13226383, Q170584, Q22222786, SPARQL

This property is being used by: hu:Sablon:Út infobox ca:Plantilla:Infotaula lloc web, ca:Plantilla:Infotaula carretera, ca:Plantilla:Infotaula carretera/prova ru:Шаблон:Больница es:Plantilla:Ficha de estructura, es:Plantilla:Ficha de edificio, es:Plantilla:Ficha de estructura/Pruebas, es:Plantilla:Ficha de espacio natural, es:Plantilla:Wikidata Infobox, es:Plantilla:Ficha de estándar de tecnología, es:Plantilla:Ficha de parque als:Vorlage:Infobox Software be:Шаблон:Бальніца de:Vorlage:Infobox Software, de:Vorlage:Wikidata Infobox/core el:Πρότυπο:Πληροφορίες γέφυρας gu:ઢાંચો:Wikidata Infobox, gu:ઢાંચો:Wikidata Infobox/core it:Template:WLM2018-riga, it:Template:Infobox stazione della metropolitana, it:Template:WLM2019-riga, it:Template:Impianto sportivo, it:Template:Infobox stazione ferroviaria, it:Template:Infobox fermata su richiesta della Funicolare, it:Template:Infobox stazione della funicolare, it:Template:Infobox stazione tranviaria, it:Template:WLM2020-riga, it:Template:Archivio documentale, it:Template:Tunnel, it:Template:WLM2021-riga, it:Template:Museo, it:Template:Stazione ferroviaria, it:Template:Linea ferroviaria, it:Template:WLM2022-riga, it:Template:Trasporto pubblico, it:Template:WLM2023-riga, it:Template:Area protetta uk:Шаблон:Картка:Домен верхнього рівня pt:Predefinição:Info/Arquivo/Wikidata, pt:Predefinição:Info/Biblioteca/Wikidata, pt:Predefinição:Info/Teatro/Wikidata, pt:Predefinição:Wikidata Infobox/core ast:Plantía:Ficha de faru commons:Template:Wikidata Infobox/core cy:Nodyn:Wikidata Infobox id:Templat:Wikidata infobox, id:Templat:Kotak info Wikidata/inti mw:Template:Wikidata Infobox/core mr:साचा:विकिडाटा माहितीचौकट/core, mr:साचा:विकिडेटा माहितीचौकट/core sa:फलकम्:Wikidata Infobox ur:سانچہ:خانہ معلومات ویکی ڈیٹا/کور, ur:سانچہ:Wikidata Infobox/core q:fr:Modèle:Wikidata Infobox/core kab:Talɣa:Infobox website ta:வார்ப்புரு:Wikidata Infobox/core hi:साँचा:Wikidata Infobox/core cs:Šablona:Infobox - silnice, cs:Šablona:Infobox - silniční tunel, cs:Šablona:Infobox - most sv:Mall:Wikidata Infobox/core s:zh:Template:Wikidata Infobox/core ckb:داڕێژە:Wikidata Infobox/core vec:Modèl:Infobox de Strada, vec:Modeło:Infobox de Strada ku:Şablon:Wikidata Infobox/core m:Template:WLMITA2018-riga mnw:ထာမ်ပလိက်:Wikidata Infobox/core lij:Template:Staçión feroviària sc:Template:Museu s:bn:টেমপ্লেট:উইকিউপাত্ত তথ্যছক/মূল d:Template:Wikidata Infobox/core no:Mal:Wikidata Infobox/core s:ban:Mal:Wikidata Infobox/core ban:Mal:Wikidata Infobox/core lv:Veidne:Wikidata Infobox/core ga:Teimpléad:WD Bosca Sonraí Bóthar roa-tara:Template:Linèe ferroviarie, roa-tara:Template:Musèe, roa-tara:Template:Stazione ferroviarie, roa-tara:Template:Strade lmo:Modell:Musee voy:shn:ထႅမ်းပလဵတ်ႉ:Wikidata Infobox s:hi:साँचा:Wikidata Infobox/core gsw:Vorlage:Infobox Software oc:Modèl:Infobox Rota ms:Templat:Kotak info pangkalan data biologi, ms:Templat:Kotak info pangkalan data biologi/kotak pasir Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

generalize / généralisation

English: This property and P127 should be generalized: for example bridges have an owner and a maintainer as well (cf. en:Template:Infobox bridge).
Français : Le domaine d'application de cette propriété ainsi que celui de P127 devraient être étendus : par exemple les ponts ont aussi un propriétaire et un organisme assurant sa maintenance. (cf. en:Template:Infobox bridge)
--Gloumouth1 (talk) 14:47, 6 March 2013 (UTC)

Unless there is opposition to it, I will rename this property to "maintainer". --Zolo (talk) 06:18, 4 April 2013 (UTC)

Ok with that. But is it enough? Description in every language should be updated; therefore, maybe we should have an "official" page to diffuse this kind of information. --Gloumouth1 (talk) 07:46, 4 April 2013 (UTC)

Yes, we should have a better way to diffuse information, both for discussion and for translation updates. In this case, the issue has been discussed for P165, so further discussion does not seem really needed, and I tried to update translation, but that's not really complete.--Zolo (talk) 10:33, 7 April 2013 (UTC)

Actually, there seems to be P:P137, I am not sure whether they refer to the same thing. I think the difference is not always clear (and it seems to be worth in some translations), so that it would be better to merge both properties and use qualifiers. --Zolo (talk) 10:51, 7 April 2013 (UTC)

If you agree with the generalization, why did you revert it? --Gloumouth1 (talk) 08:18, 8 April 2013 (UTC)

Because I encountered a label conflict with P:P137 for lang:nds. I think we should decide whether we should merge the two properties. --Zolo (talk) 08:29, 8 April 2013 (UTC)

I left a note at Property talk:P137. --Zolo (talk) 09:04, 8 April 2013 (UTC)

 Done, after minor clarifications. --Zolo (talk) 15:23, 11 April 2013 (UTC)

Cool. --Gloumouth1 (talk) 15:34, 11 April 2013 (UTC)

Inverse property

Hi, what's inverse property for this? Do we want inverse property? I think yes. Skim (talk) 11:17, 23 September 2020 (UTC)

Depending on context, you could try item operated (P121), or subject has role (P2868)Xof (P642)Y , where X could be software maintainer (Q1420140), curator (Q674426), proprietor (Q16869121), manager (Q2462658), legal guardian (Q157509), operator (Q1970438), etc. Do you have examples of items where you think such a statement is needed? Swpb (talk) 15:56, 29 September 2020 (UTC)

@Swpb, Skim: We simply need an universal inverse property for this property. Generally, an "operator" is not allways the same as a "maintainer". "Maintaner" can be also a synonyme for "administrator", in some contexts and languages and types of items. Generally, the property P126 is often used for a state or municipal property which is maintained by the state or municipal organization or by an authorized private organization. Private companies can also establish or hire another entity or establish their own organizational unit to manage their assets or their activities. Fundations, infrastructure managers, protected area manageres etc. can fall under this term. This subject usually exercises the rights and obligations of the owner in full or to a limited extent. In this way, a specific employee (person, function) who has been authorized as an administrator/keeper/curator/caretaker/custodian can also be the maintainer of any property or activity or right or obligation. E.g. in case of a railway line, the maintainer needs not to be identical with the operator. In case of a protected natural area or forests etc., the landscape is rather "maintained" than "operated". In case of buildings, structures and similar facilites, it is necessary to distinguish between the entity that rents and manages the device on behalf of the owner, and the entity that has it in use as an operator (as a tenant). (Unfortunately, there is a complication here that labels of Wikidata properties in different languages can have different breadth of the concept and different connotations.) --ŠJů (talk) 14:34, 8 February 2023 (UTC)