[DAS2] DAS/2 UML Class Diagram

[Helt,Gregg]

I've attached a jpeg of my latest attempt at making UML class diagrams
based on the DAS/2 spec.  I sent an earlier attempt a few weeks ago, but
I think somehow the mailing list filters ate it.  The zuml file (zipped
up xmi) this is based on is checked into the genoviz sourceforge
repository as documentation/GenometryWithDas.zuml.  There's a lot of my
"genometry" data modeling in the xmi, but the abstract DAS/2 model
doesn't refer to the genometry stuff - I wanted to have an abstract
model that doesn't depend on other stuff.  My actual DAS/2 client
implemention is a tighter integration between DAS and genometry models.
 
Anyway, I've found having this diagram very useful when thinking about
the spec.  For example two of the spec changes I've been thinking about
recently, removing the <CAPABILIITES> element from the versioned source
info and adding a <FORMAT> tag for types, I've highlighted in the model
in red and green, respectively.  If you have a chance please take a look
at the diagram and let me know if anything looks wrong relative to the
spec.
 
            gregg
 
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