PR#2 for Provenance DM : syncronicity with vocabularies definition in Semantics WG

[Markus Demleitner]

Hi Pat,

On Wed, Sep 04, 2019 at 09:01:36AM -0700, Patrick Dowler wrote:
> In my experience evolving CAOM, it is possible to change from an enum to a
> vocabulary term without invalidating existing instances (stored in
> databases, eg). It does require that one use the datalink-style where you

Yes, but as I said a mail up:

> > constraints, which might still break clients, though).  However, the
> > enums would have to be defined, and I don't think anyone would want
> > to do that.

-- it would mean introducing enums now, and that's a lot more
intrusive (and probably more work) compared to vocabularies than
what's in ProvDM now (which is a rather weak "see if something in
Table X fits").

      -- Markus