While I hesitate to engage with a rather toxic thread ...
> > 2. Schema.org alone is not sufficient for our use cases
> I don't see that this is relevant. In Linked Data it is enormously easy to
> supplement in cases where the base is found lacking.
>
It is relevant because while it is enormously easy in Linked Data due to
the ease of generating distinct namespaces, schema.org lacks this by design.
Rob
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Rob Sanderson
Technology Collaboration Facilitator
Digital Library Systems and Services
Stanford, CA 94305