Property talk:P9771

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free/libre open source software usage policy URL
URL for free/libre open source use policy or guideline of an entity

Represents	free/libre open source software usage policy (Q114859864)
Data type	URL
Domain	organization (Q43229) or open-access journal (Q773668)
Allowed values	(f|ht)tps?://.+
Example	Swedish Social Insurance Agency (Q3372219) → https://github.com/Forsakringskassan/riktlinje-oppenkallkod/blob/master/riktlinje.md Association for Progressive Communications (Q743611) → https://www.apc.org/en/apc-freelibre-and-open-source-software-policy-apc-floss-policy OpenStreetMap Foundation (Q6542248) → https://wiki.osmfoundation.org/wiki/FOSS_Policy
See also	free/libre open source software development policy URL (P9904)
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 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/P9771 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 13 Main statement 9 69.2% of uses Qualifier 3 23.1% of uses Reference 1 7.7% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “organization (Q43229), open-access journal (Q773668)”: item must contain property “instance of (P31), subclass of (P279)” with classes “organization (Q43229), open-access journal (Q773668)” or their subclasses (defined using subclass of (P279)). (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/P9771#Type Q43229, Q773668, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (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/P9771#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200): 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/P9771#Entity types

Format “(f|ht)tps?://.+”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P9771#Format, hourly updated report, SPARQL