Dear Vladimir,
> I see no conflict in treating them the same: there are no "conflicting
> properties" and the classes are not disjoint (e.g. E21 Person is both E74
> Actor, and E18 Physical Thing).
I think scope notes of the mentioned classes may contain contradicting
statements, e.g.:
"This class comprises people, either individually or in groups, who
have the potential to perform intentional actions for which they can
be held responsible."
in E39.Actor's scope note
and
"This class comprises aggregations of physical items that are
assembled and maintained ("curated" and "preserved", in museological
terminology) by one or more instances of E39.Actor over time for a
specific purpose and audience, and according to a particular
collection development plan."
in E78.Collection's scope note
So, it's hard (to me) to image anything instantiating both classes at
the same time.
--
Best regards,
Vladimir Ivanov
2011/11/23 Vladimir Alexiev <[email protected]>:
> Excellent questions.
> In our mapping of the Rembdandt database we "overload" classes in some cases,
> examples are below.
> Comments and critique are most welcome !!!
>
> 1. Collection as both Actor and Collection
>
> We treat them as both:
> - E39 Actor, so we can use E10 Transfer of Custody for the keeper and E8
> Acquisition for the owner
> - set of physical objects (E78 Collection), so we can use E79 Part Addition
> for the object entering and E80 Part Removal for the object leaving
>
> rkd-collection:Mauritshuis a crm:E78_Collection, crm:E39_Actor; # not certain
> whether crm:E21_Person or crm:E40_Legal_Body
> crm:P52_has_current_owner rkd-collection:Mauritshuis; # self-link
> crm:P50_has_current_keeper rkd-collection:Mauritshuis; # self-link
> crm:P109_has_current_or_former_curator rkd-collection:Mauritshuis; #
> self-link
> crm:P1_is_identified_by [crm:P3_has_note "Koninklijk Kabinet van
> Schilderijen Mauritshuis"@nl, "Royal Cabinet of Paintings Mauritshuis"@en];
> crm:P2_has_type rkd-collection:museum;
> crm:P74_has_current_or_former_residence rkd-place:TheHague; # Actor location
> crm:P55_has_current_location rkd-place:TheHague. # Collection location
>
> We could speak separately about Mauritshuis the organization and Mauritshuis
> the set of paintings, but pragmatically it's better to use just one node.
> I see no conflict in treating them the same: there are no "conflicting
> properties" and the classes are not disjoint (e.g. E21 Person is both E74
> Actor, and E18 Physical Thing).
>
> 2. Object entering/leaving collection
> Because of 1, we can use one multi-typed event (E79, E10, E8) relating to
> both Actors and Collections:
> E.g. entry in collection:
>
> <obj/2926/collection/5/entry> a crm:E79_Part_Addition,
> crm:E10_Transfer_of_Custody, crm:E8_Acquisition;
> crm:P111_added <obj/2926>; crm:P30_transferred_custody_of <obj/2926>;
> crm:P24_transferred_title_of <obj/2926>;
> crm:P110_augmented rkd-collection:Mauritshuis; # domain E79_Part_Addition
> crm:P29_custody_received_by rkd-collection:Mauritshuis; # domain
> E10_Transfer_of_Custody
> crm:P22_transferred_title_to rkd-collection:Rijksmuseum; # domain
> E8_Acquisition
> crm:P4_has_time-span <obj/2926/collection/5/entry/date>.
> <obj/2926/collection/5/entry/date> crm:P82_at_some_time_within
> "1816"^^xsd:gYear.
>
> 3. Document as both conceptual thing (E31) and its physical embodiment (E84)
>
> (The db speaks about its location, size etc; so we need a physical thing)
> I hope it's not wrong to mix the two, they have a common parent:
> crm:E71_Man-Made_Thing
>
> <obj/2926/document/1> a crm:E31_Document, crm:E84_Information_Carrier;
> crm:P128_carries <obj/2926/document/1>; # the physical document (E84)
> carries its conceptual self (E31)
> crm:P2_has_type rkd-documentation:X-ray_film;
> crm:P50_has_current_keeper rkd-collection:Mauritshuis;
> crm:P55_has_current_location [crm:P3_has_note "conservation studio"];
> crm:P43_has_dimension <obj/2926/document/1/height>;
> crm:P43_has_dimension <obj/2926/document/1/width>.
> <obj/2926/document/1/height> crm:P2_has_type rst-dimension:height;
> crm:P91_has_unit unit:Centimeter; crm:P90_has_value "30"^^xsd:double.
> <obj/2926/document/1/width> crm:P2_has_type rst-dimension:width;
> crm:P91_has_unit unit:Centimeter; crm:P90_has_value "40"^^xsd:double.
>
> --
>
>> recommendations for the implementation of ... property quantifiers
>
> Do you mean "P3.1 has type" and the like?
>
>
> _______________________________________________
> Crm-sig mailing list
> [email protected]
> http://lists.ics.forth.gr/mailman/listinfo/crm-sig
>
--
С уважением,
Владимир Иванов
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