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Review of BM Association Mapping v2

Acquisition sub-event connected with inverse

Acquisition patterns (Transfer of Ownership and Change of Custody) connect both the main event and the sub-event to the object:

<obj> P24i_changed_ownership_through <obj/acquisition>.
<obj/acquisition> P9_consists_of <obj/acquisition/M>.
<obj/acquisition/M> P24_transferred_title_of <obj>. # not P24i

Why do you use P24 to connect the sub-event, instead of P24i that is used for the event?
This is a nitpicking since OWLIM infers P24i from P24, but for consistency and better interoperation with repos that don't infer inverses, it's better to use P24i in both cases.

Production sub-event not connected

Production patterns don't connect the sub-event to the object:

<obj> P108i_was_produced_by <obj/production>.
<obj/production> P9_consists_of <obj/production/M>.
<obj/production/M> P14_carried_out_by <person>. # P108i is missing

This is inconsistent with Acquisition, and makes it harder for us to find all sub-events. Please add P108i

Association is redundant when using a sub-event

Why use both EX_Association and P9_consists_of sub-event? Just put P2_has_type into the sub-event, don't use EX_Association

Closely Related Group

Take "produced by Workshop of Rembrandt".

  • Previously this was modeled as:
    Produced by E21_Person "Rembrandt" with Association "Workshop of"
  • Currently this is modeled as:
    Produced by E74_Group "Workshop of Rembrandt" with type "Workshop Of" and member E21_Person "Rembrandt"

The current way is more faithful to CRM, but it has some peculiarities/problems regarding search.
Remember that by FR Transitivity, search by Dutch finds paintings by Rembrandt, and paintings by Rembrandt are counted in Creator=Dutch facet.

  1. If you search for Rembrandt, you won't find paintings by Workshop of Rembrandt since the transitivity works the other way around.
    Don't know what to do, need to discuss
  2. The Group is ad-hoc: it uses a local (per-object) URL and doesn't have the required attributes for a term (skos:prefLabel and skos:inScheme).
    To be searchable, the Group should be associated with a thesaurus (inScheme) that itself is registered in the meta-thesaurus.
    BM needs to fix
  3. If you search for Workshop of Rembrandt, you will find paintings by Rembrandt.
    This may be OK
  4. Paintings by Rembrandt will be counted in facets Workshop Of Rembrandt, School of Rembrandt, Circle of Rembrandt, and whatever other related groups are created.
    This is probably not OK.

Closely Related Individual

This uses a property bmo:PX_pupil that is not a CRM extension. So a CRM-consuming application won't know about it.
I'd rewrite it to use the above pattern, i.e. a group consisting of a single person.

Minor fixes

These are not related to Associations. They have not been discovered until now.

Bibliography

See eg http://test.researchspace.org:8081/resource?uri=http://collection.britishmuseum.org/id/bibliography/148:

  • bibo:numPages is wrong, you should use bibo:pageStart and bibo:pageEnd for a continous page range.
  • Or if you have one field in Merlin, at least use bibo:pages
  • see BIBO documentation

Ontology

  • wrong label:
    bmo:PX_physical_description rdf:type owl:DatatypeProperty ;
      rdfs:label "physical exhibition"
    
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