<INFO> tag in VOTable1.2
roy at cacr.caltech.edu
Wed Mar 4 12:21:29 PST 2009
If it is still possible, I would like to add my voice asking for the
INFO tag to be left alone. The benefits from the suggested change seem
quite small, compared to the costs.
In several IVOA documents the following thing is shown, and many
applications code against this:
<INFO name="QUERY_STATUS" value="OK">Successful query</INFO>
The problem with changing this tag is that error messages may not
propagate back to the customer, meaning they cannot get their query
correct, more astronomers disillusioned with the VO.
For example. the backend service may return an INFO tag saying that the
query failed because of a case-sensitivity problem: "Unknown database
table PHOTOPRIMARY". If the customer sees this, she may try
"Photoprimary" instead, and be successful and then tell her friends the
VO is fabulous. However, if the INFO changes, and the VOTable
versions/schemas/documentation are mismatched in some way, the same
customer gets no diagnostic, accepts failure, tells all her friends the
VO is bad.
I do not think this big cost is balanced by the benefits of the proposed
California Institute of Technology
626 395 3670
More information about the votable