IVOA WG data access layer

[Tony Linde]

I think the DAL has to look at all types of access to data whether querying
catalogues, accessing images, time series or spectra and any other type of
data access.

Or is the split intended to be: 

. VOQL addresses access to tabular data

. DAL addresses access to non-tabular data

Might work.

Cheers,
Tony. 

> -----Original Message-----
> From: Markus Dolensky [mailto:Markus.Dolensky at eso.org] 
> Sent: 04 April 2003 11:05
> To: ael at star.le.ac.uk
> Cc: 'Clive Page'; 'Bob Mann'; 'Keith Noddle'; Doug Tody
> Subject: Re: IVOA WG data access layer
> 
> 
> Hi Clive,
> 
> Tony thankfully already answered the questions.
> 
> I'm glad to hear that you'll augment our little group.
> Myself I'm referring to it as the DAL (data access layer) 
> working group 
> since Simple Image Access is neither very simple nor do we want to 
> restrict it to images. But since the only document about it so far 
> coined the term SIA it is more commonly used in the NVO world.
> 
> For AVO we would like to add support for spectroscopy in the near 
> future. Somebody else might want to look into time series 
> data and how 
> to access them.
> 
> It looks like we'll have a WG meeting May 14, but probably 
> we'll start 
> already on Tue May 13. It is really up to us. (Forget Nic's 
> agenda - it 
> was just to make people start doing things, which worked as 
> one can see.)
> 
> The scope of DAL is the first thing to clarify. But please 
> refer to http://www.ivoa.net/twiki/bin/view/IVOA/IvoaDAL
> for now.
> 
> Cheers,
> Markus
> 
> +---
> | Markus Dolensky   Mailto:Markus.Dolensky at eso.org
> | AVO Technical Lead          Web: www.euro-vo.org
> | Voice: ++49 89 32006/261  Fax: ++49 89 32006/480
> +---
> 
> 
> 
> Tony Linde wrote:
> >>Sorry, the acronym SIA/DAL is not one that my brain
> >>translates instantly - any hints?
> > 
> > 
> > SIAP: Simple Image Access Protocol:
> > - one of the NVO efforts:
> >   http://www.us-vo.org/news/simspec.html
> > 
> > DAL: Data Access Layer:
> > - one of the standards areas being tackled by IVOA 
> workgroups (along 
> > with Registry, ...)
> > 
> > 
> >>>>For the current status please refer to
> >>>>http://www.ivoa.net/twiki/bin/view/IVOA/IvoaDA> L
> >>>
> >>I looked at this page but got: This Wiki topic does not exist yet
> > 
> > 
> > Probably because the last letter was chopped off, try:
> >   http://www.ivoa.net/twiki/bin/view/IVOA/IvoaDAL
> > 
> > Cheers,
> > Tony.
> 
>