Lifting 1.1 limit in SCS?

Pierre Fernique Pierre.Fernique at astro.unistra.fr
Fri Nov 19 13:56:12 CET 2021


Dear Apps & DAL,

As far as I know this erratum will have no impact on the existing 
versions of Aladin Desktop.
Pierre Fernique

Le 19/11/2021 à 12:35, Molinaro, Marco a écrit :
> Dear Apps & DAL,
>
> an erratum has been proposed for
> Simple Cone Search v1.03.
>
> You can find it here:
> https://wiki.ivoa.net/twiki/bin/view/IVOA/SCS-1_03-Err-2
>
> and below there's the DAL thread that started
> this update.
>
> Apps WG is added to this thread to gather
> comments and feedback on the client impact
> assessment for the erratum itself.
>
> Thanks in advance and
> Cheers
> Marco
>
> PS - Mark/Markus: check whether I acted
> on the text as expected.
>
> Il giorno ven 19 nov 2021 alle ore 10:58 Markus Demleitner 
> <msdemlei at ari.uni-heidelberg.de> ha scritto:
>
>     Hi Mark,
>
>     On Thu, Nov 18, 2021 at 02:34:51PM +0000, Mark Taylor wrote:
>     > On Thu, 18 Nov 2021, Markus Demleitner wrote:
>     > > On Wed, Nov 17, 2021 at 01:19:59PM +0100, Molinaro, Marco wrote:
>     > > > I took the liberty to draft the erratum:
>     > > >
>     > > > https://wiki.ivoa.net/twiki/bin/view/IVOA/SCS-1_03-Err-2
>     > >
>     > > Thanks for making that move.  I've expanded the erratum a bit, and
>     > > I'd now be happy with it.
>     >
>     > I prefer Marco's original
>     >
>     >    "The XML content of the response must be compliant with the
>     >     VOTable Recommendation."
>
>     Fair enough -- unless someone else speaks out for the lengthy
>
>     >    "Simple Cone Search services MUST return VOTable version 1
>     documents.
>     >     This means that clients will have to handle the namespace URIs
>     > http://www.ivoa.net/xml/VOTable/v1.1,
>     > http://www.ivoa.net/xml/VOTable/v1.2, and
>     > http://www.ivoa.net/xml/VOTable/v1.3, where the last namespace
>     >     will be used for all future VOTable 1 versions.
>     >     For forward compatibility clients should ignore unknown elements
>     >     and attributes in these documents as per the IVOA schema
>     versioning
>     >     policies."
>
>     totally feel free to revert -- though I can't say I like either of
>     "XML content" and "compliant with" very much, which is what made be
>     try a re-formulation in the first place; perhaps we can go for "SCS
>     responses are returned in the VOTable format"?)
>
>     > I'm dubious also about Markus's mention of BINARY serialization,
>     > only to point out that it's not relevant here:
>     >
>     >    "We note that, in particular, the main interoperability
>     problem even
>     >     in the days of SCS 1.03, lack of support for
>     BINARY-serialised tables,
>     >     is orthogonal to the problem addressed here, as BINARY
>     serialisation
>     >     was already part of VOTable 1.1."
>     >
>     > I would therefore prefer to delete the middle paragraph of the r2
>     > impact assessment.
>
>     Yeah, that might be hedging too much, and I don't think it's been a
>     problem in the last 10 years or so any more.  So, yes, chuck it out.
>
>          -- Markus
>
>
>
> -- 
> Marco Molinaro
> INAF - Istituto Nazionale di AstroFisica
> Osservatorio Astronomico di Trieste
> email marco.molinaro at inaf.it
> tel. [+39] 333 33 20 564 / 040 3199 152
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