[Crm-sig] Issue 519: Homework to propose deprecation of P48, P54

Robert Sanderson azaroth42 at gmail.com
Wed Mar 3 22:49:00 EET 2021


Dear all,

Thanks to Eleni for sending out the agenda and thereby reminding of our
homework!

The proposal is to deprecate two properties, P48 has preferred identifier
and P54 has current permanent location, following on from the conclusion of
the discussion around the proposed property of 'has current permanent
custodian' in issue 473.

As I recall it, the rationale for not adding 'has current permanent
custodian' was *not* that the property did not make sense (it did) and *not*
that it was not useful (it is), but that it was not necessary to add, as it
is possible to add a classification to the activity that has the result of
the transfer of custody, as to whether it is temporary or permanent.

The consequence of this was a (brief) examination of the specification for
other properties where this pattern would be applicable, with the obvious
deprecation candidates of P48 and P54.
The remediation pattern for P48 would be to add P2_has_type to the E41
Identifier to indicate preferred-ness, or the E13 attribute assignment /
E15 Identifier Assignment of the identfier to the identified entity.
The remediation pattern for P54 would be to add a P2_has_type to the E9
Move to the location, in the same way that the resolution for 473 was to
add P2_has_type to the Transfer of Custody.

The proposal should be considered separable -- not accepting the
deprecation of P48 is not grounds for not accepting the deprecation of P54.

Rob

-- 
Rob Sanderson
Director for Cultural Heritage Metadata
Yale University
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