Dear DAL WGers -
Our highest priorities for the Beijing interop would appear to be 1) SSAP and SLAP (both of which should go to PR in this meeting), 2) the new Table Access Protocol (TAP), and 3) SIA V2.0 and related issues such as adding grid capabilities to the DAL services. Work is also in progress on SNAP, mainly within the Theory IG at this stage.
Here is what we currently have for a draft WG agenda:
DAL-1
SSAP (final review of V1.0 WD and implementations before PR)
DAL/Registry interaction (e.g. getCapabilities, service registration
and verification) [with Registry WG]
DAL-2 [with Data Models WG]
Spectrum DM
SSAP discussion - is SSAP ready to go to PR?
SLAP (final review of V1.0 WD before PR)
If there is time, discussion of further evolution of spectral
data interfaces, e.g., SEDs, spectral associations.
DAL-3, DAL-4 [with VOQL WG]
TAP specification. A joint VOQL-DAL group is working on this
now and should have a draft version for review available
in advance of the meeting. TAP will be the primary DAL
protocol for catalog access, but is also the main VO query
language facility, hence is being addressed jointly by VOQL
and DAL. Within DAL we want to ensure uniformity with the
other DAL interfaces and where possible enable use of common
facilities, e.g., a common basic service profile, common grid
capabilities, common getCapabilities method and pattern for
registry interaction, and so on.
DAL-5
SIA V2 planning
complex data, integration of grid capabilities into DAL
roadmap update
The SNAP interface will be discussed within the Theory IG sessions. Anyone from the DAL WG who is interested in this interface should attend this session.
An additional DAL session is being considered for presenting implementations, but is not currently scheduled. Anyone who would like to present something, or suggest additional topics, should contact me and we can consider further changes to the draft agenda.
Updated versions of the SSAP and SLAP specifications, hopefully ready to go to PR following a final round of WG discussion, should be available in April in time to review before the meeting. A revised version of Spectrum, prepared jointly by DM and DAL, should also be available shortly.