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<p>Dear TAP and VO registry (and Apps) contributors,</p>
<p>I would like to emphasize by this mail an issue that we are face
to in the developement to Aladin V10. I described it briefly at
the Shanghai Interop meeting but a larger audience on the IVOA
list may be important.<br>
If we could have a short addition in the VO registry document to
solve it, it would be really great.</p>
<p><b>The problem by an example:</b> (IRSA example, but it should be
HEASARC or VIZIER...)<b><br>
</b></p>
<p>I am a user an I want to query by TAP one IRSA specific resource.<br>
So Aladin v10 provides for me the list of all IRSA resources from
the VO registry supporting TAP access (see below), and I select my
table.<br>
Good !<br>
=> <i>2MASS Calibration Point Source Working Database</i>
(ivoid => <i>iras.ipac/2mass/catalog/calpwsdb</i>)<br>
</p>
<p><img src="cid:part1.D462DD9B.721F1277@astro.unistra.fr" alt=""></p>
<p>2. I discover that I can access it by critera (check box "<i>by
criteria</i>" below). Perfect !<br>
I access to the TAP form associated to this table.<br>
<br>
And now, <b>I'm stuck. I have absolutely no idea of which table
in the TAP schema corresponds to my selection</b>, and the VO
registry ID, in this case does not help me.</p>
<p><img src="cid:part2.BF2C299E.2AAD704F@astro.unistra.fr" alt=""></p>
<p><i>Note: </i>In fact, if I have had a way to look into the
original XML VO registry record for this IRSA table, I would have
discovered a free text field containing this kind of sentence "<i>for
this resource you have to use this TAP table name XXXX.</i>".
So, the problem has been clearly already touched by IRSA team, but
for client tools such as Aladin v10, this free text sentence is
not really helping.<br>
</p>
<p><b>One suggested solution:</b></p>
<p>I would suggest to <b>add in the VO registry record of the TAP
capability of this table the name of the internal DB table
associated to</b>. </p>
<p>Obviously, the one to one table correspondance is not always the
case. For instance, Simbad is not described by one unique DB
table. But for big TAP DB - such as VizieR, IRSA, HEASARC.... it
is the case. And the problem occurs especially for these kinds of
servers.<br>
<br>
</p>
<p>Comments ? Remarks ? Others ideas to solve the problem ?<br>
</p>
<p>Cheers<br>
Pierre</p>
<p><br>
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