Comments on Utypes note

(http://www.ivoa.net/internal/IVOA/Utypes/WD-Utypes-0.3-20090522.pdf)

@2.1 "data model elements": need to agree what these may be. That is need to know the syntax of data modelling. When in UML this might mean deciding on using Class diagrams. Or choosing a particular UML profile. Or possibly a custom language defined for "data modelling in the VO". This is what we have done in SimDB and therefore we were able to define ("BNF") and implement (XSLT) rules for deriving Utypes from the data model.

Possible use cases:

  • Annotation for results of ADQL queries on SimDB/TAP
  • annotating element in TAP_SCHEMA representation of SimDB/DM
  • annotating elements in XML schema representation of SimDB/DM
  • Identification of elements in models derived from SimDB/DM, for example in views.
  • ...


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Topic revision: r3 - 2009-06-02 - GerardLemson
 
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