Data set metadata schemas

[Robert Hanisch]

As I have said previously, I think we need to make a final (for now) update
to RSM and then build prototypes to that, starting now, not in September or
October.  AG and NVO are already doing so, but I believe it is essential to
have others in the IVOA publish resources to the draft specification so we
can learn, by experience, what gaps we have and what elements we have that
may not actually be useful.  Francoise said it well in her posting today.
If we can agree now to go with RSM v0.7, or 0.8, whatever, we then have time
this fall for another iteration, and have some hope of having a good first
cut at IVOA registries for January '04.

I am prepared to make these edits if others are now willing to go forward.
The revisions I am currently aware of are as follows:

o  Change Ticker element to ShortName.  We added Ticker just prior to the
Cambridge workshop, and since then it has become clear that the definition
of Ticker we were assuming is not even recognized very widely in American
English.  The 8-character limit also seems to be overly constraining.

o  Update list of acceptable Type values (add Organization, Project).

o  Update description of Coverage.Spatial to utilize Space-Time Metadata
region specification.

o  Rename the document.  I'd prefer not, but will not make an issue of this
if people care about it strongly.

If there are other outstanding issues I have forgotten about, please let me
know.

Thanks,
Bob


----- Original Message ----- 
From: "Tony Linde" <ael at star.le.ac.uk>
To: "'Anita Richards'" <amsr at jb.man.ac.uk>
Cc: <registry at ivoa.net>
Sent: Wednesday, June 18, 2003 4:56 PM
Subject: RE: Data set metadata schemas


> Hi Anita,
>
> > But, give me a deadline and I will produce a more coherent
> > and concise commentary on RSMv7 - if it is tomorrow it will
> > just be extracted from my present ramblings...
>
> I'll let Bob jump in if there is any urgent requirement for RSMv7
feedback.
> First priority is AG Itn02 delivery for end of June. But we also want
> feedback on RSMv7 to be comprehensive and debated. Maybe it should take
the
> form of an annotated version of the RSMv7 document? Or a separate document
> which refers to the RSM sections? Whichever you and Elizabeth feel most
> comfortable with.
>
> Cheers,
> Tony.
>
> > -----Original Message-----
> > From: Anita Richards [mailto:amsr at jb.man.ac.uk]
> > Sent: 18 June 2003 09:51
> > To: Tony Linde
> > Cc: registry at ivoa.net
> > Subject: RE: Data set metadata schemas
> >
> >
> >
> > > Hi Anita,
> > >
> > > Thanks for all that. Are these the sum total of changes
> > made to RSMv7?
> > > Or do you need more time to come up with a full commentary on RSMv7?
> > >
> > > Cheers,
> > > Tony.
> >
> > Hi Tony,
> >
> > I would like to try and get in a couple more data sets -
> > Elizabeth has sent me an STP one and I would like to tackle
> > HIJ/PASS (even if the resulting schema is not being used for
> > the Ango-Aus demo) and, funnily enough, a radio
> > interferometry data set ... Also, I should go back and look
> > at it with respect to the handful of science cases we broke
> > down in detail. That is still not comprehensive of course,
> > and I think it is a mistake if we ever think the schema are
> > finished - although there does need to be fixed update
> > points.  Most of all, I would like any comments from others -
> > probably along the lines of 'we have already decided xxx so
> > drop yyy' or 'you can't DO that in xml!' .  I also need to
> > know opinions on where we do the unit conversions - at
> > present I get the impression that Bob was recommending that
> > the Registry descriptions of datasets are in a restricted set
> > of units, and that sounds sensible to me - that way, we would
> > only have to do ultra-accurate conversions for the data which
> > were actually used for each query.
> >
> > But, give me a deadline and I will produce a more coherent
> > and concise commentary on RSMv7 - if it is tomorrow it will
> > just be extracted from my present ramblings...
> >
> > thanks
> > a
> >
> >
> >
>
>