Dear all, As a part of the homework Patrick and I were asked to have a look into how to adjust FRBRoo to model other mass produced objects than 'publication products*. This issue is related and may be a part of the answer to this question.
The current scope note of E55 Type is as follows "This class comprises concepts denoted by terms from thesauri and controlled vocabularies used to characterize and classify instances of CRM classes. Instances of E55 Type represent concepts in contrast to instances of E41 Appellation which are used to name instances of CRM classes. E55 Type is the CRM's interface to domain specific ontologies and thesauri. These can be represented in the CRM as subclasses of E55 Type, forming hierarchies of terms, i.e. instances of E55 Type linked via P127 has broader term (has narrower term). Such hierarchies may be extended with additional properties." A CRM-type is a concept (a E28 Conceptual object in CRM) . A CRM-type represents or denotes a hypothetical set of other instances (members of) of CRM classes. The set is hypothetical in since we don't know all its members. Ontologically we assume that there exists a procedure that makes it possible to catalog or characterize an instance to belong to (P2 has type) to the set denoted by the concept. For example: In Natural History (systematical biology) every species definition (in CRM a species is a E55 Type) , has to prescribe explicitly or implicitly a procedure how to decide that that a specimen belongs to a given species. This procedure is an intellectual object and can in CRM be modelled as an instance of E73 Information Object and as such it is an E72 Legal Object. The procedure may be controlled by rights and legislation, the type not. Last year Dan Matei raised the issue of how model coins and coin production. Maria Theodoridou referred to how they in a project extended CRM with "E12 Production. PC1 produced things of type: E55 Type E22 Man-Made Object. PC2 is example of: E55 Type Both PC1 and PC2 are subproperties of P2 has type" In general a (mass) event is modelled in CRM by an instance of P12 Production (subclass of P11 Modification). The property E11 Modification P33 used specific technique E29 Design or Procedure Is used to link the production event ((P12 Production ) of physical things (E24 Physical Man-Made Thing) of a given type (E55 Type)to an information object (E29 Design or Procedure) describing how to make things of this type (E55 Type). The produced stuff (sorry thing) and the procedure how to produced it are legal objects (E72 Legal Object). The type of the produced thing is not. The production of books is not different form the production of anything else. The printing (production ) of books (F5 Item) is modelled by an instance of A) F32 Carrier Production Event B) F32 Carrier Production Event - R26 produced things of type - F3 Manifestation Product Type C) F32 Carrier Production Event - R28 produced - F54 Utilized Information Carrier D) F54 Utilized Information Carrier - R7 is example of - F3 Manifestation Product Type E) F32 Carrier Production Event - R27 used as source - P24 Publication Expression F) E11 Modification P33 used specific technique E29 Design or Procedure F32 Carrier Production Event is a subclass of E12 Production F3 Manifestation Product Type is a subclass of E55 Type F54 Utilized Information Carrier is a subclass of E71 Man Made Thing R27 used as source is a subproperty of E7 Activity - P16 used specific object - E70 Thing R26 produced things of type is a kind of sub class of P2 has Type (defined as E12 Production. P108 has produced: E24 Physical Man-MadeThing. P2 has type: E55 Type which may be considered identical to PC2 above) >From this we see that the modelling of production of books in FRBRoo is neatly >modelled as a specialization of the more general production in CRM. However >there is one important difference: The type of the items produced is a legal >object. This may be a mix up of the concept 'design' as what characterize >objects, the 'design' as the prescription of how to make things of this type >and the process of developing this prescription. In the current FRBRoo we may >have used to much energy on long and detailed the formulation of the scope >note of F3 Manifestation Product Type instead of giving the E29 Design or >Procedure connected to the production of a items of a given type a more >prominent place. F3 Manifestation Product Type is simply a subtype of E55 Type and should not be a legal object. Regards Christian-Emil
