[Plastic-devs] illegal/unrecommended use of IVOA identifiers

[John Taylor]

Hi Ray -
This sounds promising (apart from Mark having spotted the gotcha in the
URI spec).  It also could tie in quite neatly with  Doug's idea about
namespacing the different "languages".
John

Ray Plante wrote:
 > Hi,
 >
 > On Fri, 17 Nov 2006, John Taylor wrote:
 >
 >> It's certainly an alternative worth considering, though I see two problems:
 >> 1) we're already using the #fragment for something else
 >>
 >
 > You can do what ever you like after the # following the IVOA id, including
 > having another pound.
 >
 > If it helps, ? has the exact same effect from the IVOA ID perspective--it
 > marks the end of the identifier that is resolvable via the registry.  You
 > could then have messages that look like
 >
 >     ivo://votech.org/plastic?info/getIVORN#...
 >
 > 2) it centralises the
 >
 >> definition of messages in one place - we want to avoid this.  So far all the
 >> messages have been defined "with the votech.org authId" (bad bad choice), but
 >> I'd really like to see ivo://estar.org/voevent/do/something/funky appear at
 >> some point.  Now we'd be crazy to let Alasdair get his hands on our
 >> publishing registry...so how would he add his message to the master list?
 >>
 >
 > So by avoiding centralization, I take you mean that you want to allow
 > anyone to define a new message.  My recommendation is that that through
 > one Standard resource record, one can define a set of properties (that are
 > presumably related).  You define your core Plastic message; Alasdair, in a
 > sepearate Standard record, defines his extended set.  Applications can
 > either describe support for whole sets or individual properties.
 >
 > I think it can work.
 >
 > cheers,
 > Ray
 >
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