On 11/10/14 10:48 AM, Robert Sanderson wrote:
>
>
> However I'll object to the two level characterization on the following
> grounds:
>
> 1. It's at least three level with Work, Instance and HeldItem.
>
> 2. It's really the four level FRBR model, given the bf:expressionOf
> predicate, just that *cough* you have to infer that the subject of
> that predicate is an Expression-y type of Work, rather than a Work-y
> type of Work.
>
> Yes, I would prefer to have bf:Expression as a class and be done with
> it, or to get rid of the FRBR work around predicates (expressionOf and
> hasExpression)

Rob, in your interpretation (because I'm not sure that this is baked
into the BF vocabulary) is every predicate limited in its use to only
one of the 'levels'? Or is there some fluidity between the classes of
bf:Work, bf:Expression and the annotation bf:HeldItem?

kc


>
>
>
>
>
> --
> Rob Sanderson
> Technology Collaboration Facilitator
> Digital Library Systems and Services
> Stanford, CA 94305

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Karen Coyle
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