DALServer V0.1 information (SSAP, DAL)

[Markus Dolensky]

Dear Doug and co-workers,

>     o    Keyword factories are provided for the SSAP and Spectrum data
>     models, based on a form of automatic code generation from a
>     common data model (ssap-keywords.xls/csv).  This frees the

Thanks a lot for putting this out! What about a more explicit utype 
namespace definition such as

<VOTABLE
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns="http://www.ivoa.net/xml/VOTable/v1.1"
   xmlns:ssa="http://www.ivoa.net/xml/SSA/ssa-v1.0.xsd"
   xmlns:sdm="http://www.ivoa.net/xml/SpectrumDM/sdm-v1.0.xsd"
   xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.30.xsd"
   xmlns:char="urn:vo-characterization"
   ...
 >
...
<FIELD utype="ssa:Access.Reference" ... />
<FIELD utype="stc:AstroCoordSystem.CoordFrame.PositionAngle" ... />
...

It's clear that these utype-pseudo namespaces aren't real in the XML 
sense, however, an IVOA registry validation tool could still perform a 
consistency check against the proper versions of Schema with only little 
additional code to be added. Note that in above example model items are 
'borrowed' from other data models (e.g. 
stc:AstroCoordSystem.CoordFrame.PositionAngle).

Cheers,
Markus

p.s. I know this is also a votable-, dm-, etc. -issue but given that 
subscription overlaps to a high degree I refrain from annoying 
recipients with multiple copies that such a x-post would generate.