Notes on discussion of SSA query interface presented by D. Tody

spectral resolution

Anita suggests additional mandatory query parameter for spectral resolution. There appears to be general consensus.

format parameter

It needs to be investigated whether text/xml:votable is a valid mime-type or whether, for instance, text/xml+votable or text/xml-votable is appropriate.

query by UCD

Idea:
Instead of inventing optional parameters one by one, support queries by UCD.

MD: Even more generally one could allow UCDs, UTYPEs as well as service specific keywords. In that case it might be desirable to have 3 distinct parameter sets to avoid ambiguities. Such a mechanism should also support the envisaged virtual table concept of ADQL.

redshift

The documentation should make clear that it could be also a blueshift (negative value) or doppler velocity.

ranking

Arnold prefers initial keyword name "score" because it implies that a higher number is better and that it can be decimal number. It remains to be discussed whether the score should be normalized (initially not the case) and whether it is desirable to describe the heuristics used to compute it.

-- MarkusDolensky - 25 May 2004

Topic revision: r1 - 2004-05-26 - MarkusDolensky
 
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