[provenance-challenge] validity problems with OPM XML output

[Joe Futrelle]

Hi folks, we're having trouble validating the XML outputs posted by various teams against the XML Schema Southampton has provided.

There are too many issues to go into, but by far the most common one is invalid "id" attributes on process and artifact tags. The schema declares these as xsi:ID, which means they need to conform to the XML NMTOKEN production (i.e., can start with a _, : or alpha and then must be alphanumeric characters only)--I'm seeing URL's and other non-NMTOKEN values in many of the teams' output.

Another validity issue in several of the outputs are missing value tags inside the account tag.

None of these are serious issues, but it would be good to get some more feedback from teams who either have attempted to make their output valid or have attempted to validate theirs or other teams' XML output.

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Joe Futrelle
Cyberenvironments and Technologies
National Center for Supercomputing Applications
http://www.ncsa.uiuc.edu/People/futrelle