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SIAP-2.0 and SODA-1.0 cumulative "-Next" page.

  • Previous material

Old DAL future page : https://wiki.ivoa.net/twiki/bin/view/IVOA/DALFuture

IVOA note : http://www.ivoa.net/documents/Notes/RecentDALProtocolsFeedback/index.html

IVOA interop meetings presentation :

Paris : https://wiki.ivoa.net/internal/IVOA/InterOpMay2019DAL/SIA2-SODA-next.pdf

College Park : https://wiki.ivoa.net/internal/IVOA/InterOpNov2018DAL/HiPStoFits_Prototype_IVOA.pdf

Victoria : https://wiki.ivoa.net/internal/IVOA/InterOpMayy2018DAL/DAL-Feedback.pdf

SIAP-2.0 feedback, issues and proposal

On GitHub: https://github.com/ivoa-std/SIA

  • input PARAMETERS with limited list of values : better description #1
Several SIAP2.0 parameters have a limited list of possible values Some have lists limited by protocol (and obscore)

POL (Stokes, LINEAR, etc..) DPTYPE (image, cube, visibility, timeseries ;..) CALIB : levels FORMAT : fts, jpeg , png, etc..

Some have free string values

COLLECTION (HST, WISE, etc...), FACILITY (VLT, Keck, Chandra), INSTRUMENT (ACS, MEGACAM, etc.)

PARAMETERs less useful if we have no prior idea of their possible values. It often happens that services do not provide these lists of parameters although section 2.1.1 However Section 2.1.20 of SIAP2.0 states : Service PARAMETER self description Any service may include a DataLink service descriptor in the vOTable output to describe itself. this descriptor would describe the supported query parameters (standard and custom) including list of values for those with a fixed list (eg. COLLECTION INSTRUMENT FACILITY DPTYPE CALIB and FORMAT) *

This will allow to discover "possibilities" of the service prior to usage and optimize the queries

The "MAY" is obviously too weak. Version 2.1 could state SHOULD or MUST


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Topic revision: r2 - 2020-05-07 - FrancoisBonnarel
 
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