Property talk:P2507

Type “scholarly article (Q13442814), statute (Q820655)”: item must contain property “instance of (P31)” with classes “scholarly article (Q13442814), statute (Q820655)” 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/P2507#Type Q13442814, Q820655, SPARQL

Value type “erratum (Q1348305)”: 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 erratum (Q1348305) (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/P2507#Value type Q1348305, 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/P2507#Entity types

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/P2507#Scope, SPARQL

I have added statute (Q820655) as a valid class of items alongside scholarly article (Q13442814), as errata are very common. e.g. National Heritage Act 2002 (Q100161543) has corrigendum / erratum (P2507) of correction slip to the National Heritage Act 2002 (Q110845603). Theknightwho (talk) 20:31, 7 February 2022 (UTC)[reply]

To whom it may concern: please take a look at my question at Wikidata:Project chat#What if errata for a source has URL but no WD item?. --colt_browning (talk) 17:08, 8 February 2022 (UTC)[reply]

I think the solution is to create a new item for the erratum. Theknightwho (talk) 17:30, 8 February 2022 (UTC)[reply]

A new item that would be an instance of what, web page (Q36774)? Is this acceptable? --colt_browning (talk) 21:48, 8 February 2022 (UTC)[reply]

Here's one I made yesterday: correction slip to the National Heritage Act 2002 (Q110845603). Also have a look at something like Erratum to: DNA methylation age of human tissues and cell types (Q22000591) if you want to see one for an academic article. Theknightwho (talk) 22:54, 8 February 2022 (UTC)[reply]

Thanks. But I seriously doubt that such items as correction slip to the National Heritage Act 2002 (Q110845603) satisfy WD:N. So I guess I'll stick to the solution I proposed at the project chat: Genius At Play (Q104403703)described at URL (P973)https://siobhanroberts.com/genius-at-play/errata/applies to part, aspect, or form (P518)erratum (Q1348305) colt_browning (talk) 21:37, 20 February 2022 (UTC)[reply]

@Colt browning I don't see how it doesn't satisfy WD:N: it refers to an instance of a clearly identifiable conceptual or material entity. Your solution isn't a good one, because it requires additional interpretation to understand and is inconsistent with how most of Wikidata operates. It's far more likely to create incomplete data and cause confusion. Theknightwho (talk) 00:08, 16 March 2022 (UTC)[reply]

An instance of a clearly identifiable conceptual or material entity which can be described using serious and publicly available references, as is required by WD:N? I believe web pages are usually not considered a "serious reference" for themselves.

I disagree that my solution inconsistent with how most of Wikidata operates but agree that it requires additional interpretation to understand. That is why I am looking for a better solution. colt_browning (talk) 14:01, 3 April 2022 (UTC)[reply]