Registry workgroup report

[Tony Linde]

> B3. Data and metadata schema: three groups are working on 
> variations of data description (Registry, VOTable, DAL) - 
> need a single effort to produce schema usable by all.

I meant DM rather than DAL (but I guess it is an issue for DAL as well).

Tony.

> -----Original Message-----
> From: owner-registry at eso.org [mailto:owner-registry at eso.org] 
> On Behalf Of Tony Linde
> Sent: 26 January 2004 10:22
> To: Peter Quinn; 'IVOA'
> Cc: registry at ivoa.net
> Subject: Registry workgroup report
> 
> 
> Current state of play wrt Registry workgroup.
> 
> A. Standards:
> =============
> 
> A1. Tony Linde was supposed to have raised the RM document to 
> PR level after the last Interop meeting; this has only now 
> been done. RFC will be issued as soon as it is publicly available.
> 
> A2. Schema 0.9 has been tested by NVO, CDS and AstroGrid. 
> Need to collate reports on this and discuss any necessary 
> amendments on workgroup list.
> 
> A3. Harvesting via OAI interface was agreed at Interop 
> meeting and has been implemented by NVO, CDS (for VizieR) and 
> AstroGrid. Standard was not comprehensive enough to ensure 
> complete interoperability but AstroGrid and NVO have 
> successfully implemented two-way harvesting and have each 
> harvested CDS data (CDS service is publishing-only service).
> 
> B. Issues:
> ==========
> 
> B1. Need basic interface standard for all services and for 
> data query services so that registered services can be 
> automatically invoked after discovery. Work has begun on this 
> in the Grid/Web Services and VOQL workgroups.
> 
> B2. Harvesting: OAI interface needs to be nailed down; also 
> need web service version; need to discuss options for push vs 
> pull vs on request; protocol to minimise traffic (which 
> services harvested).
> 
> B3. Data and metadata schema: three groups are working on 
> variations of data description (Registry, VOTable, DAL) - 
> need a single effort to produce schema usable by all.
> 
> C. What next:
> =============
> 
> C1. Review learnings on implementation of harvesting & 
> schema. Make changes to draft recommendations and schedule new tests.
> 
> C2. Bring harvesting spec and resource schema up to agreed 
> 1.0 standard and issue as PR.
> 
> D. Options for new work:
> ========================
> 
> D1. Registry query language.
> 
> D2. Registry interfaces for query & resource maintenance.
> 
> D3. Schema for non-data resources (eg tools).
> 
> 
> Cheers,
> Tony. 
> __
> Tony Linde                 
> Phone:  +44 (0)116 223 1292    Mobile: +44 (0)7753 603356
> Fax:    +44 (0)116 252 3311    Email:  ael at star.le.ac.uk
> Post:   Department of Physics & Astronomy,
>         University of Leicester
>         Leicester, UK   LE1 7RH
> 
> Project Manager,            Director,
> AstroGrid                   Leicester e-Science Centre
> http://www.astrogrid.org    http://www.e-science.le.ac.uk/
> 
>