Some minor issue on DUV

Dear Bernadette, Eric and Sumit,

Thanks for your work on DUV.

I took a quick look at the data usage document and I have  some very minor
issues, you might want to consider

-section 2,  namespace table:  the dqv namespace is missing;

-section 7.4, duv:UsageTool has rdfs:label "Usage Actor";

- Four open issues associated to  DUV in the tracking system, but  only one
is  mentioned in  the  DUV Draft.  Are you  going to include the other
 issues in the DUV draft?

- please consider to mention  the namespaces in front of each  class
depicted in the class diagram. Otherwise, when reading the document on B/W
printed paper,    It is  impossible to figure out  the vocabulary from
which the classes are borrowed  ... I know,..    I am probably one of the
last persons reading things on B/W paper ... I guess  people reading the
DUV with B/W ebook reader might have the same problem ;)

A further comment on the diagram:
 Some  classes are repeated  more than once  (e.g., skos:Concept,
oa:Annotation, foaf:Agent). Probably, that is  because the DUV diagram is
not a "planar graph" and  if you do not duplicate classes you get a diagram
with very intricate connections.
  Even If I can guess the reasons why you have duplicated classes in the
diagram,  I am not  sure that I am comfortable with this choice.  I might
be wrong but  figuring out that a same class is represented three times
 might be  as difficult as  or even more difficult that digging into a
diagram with intricate connections ...


Cheers,
Riccardo


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Riccardo Albertoni
Istituto per la Matematica Applicata e Tecnologie Informatiche "Enrico
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