Hi DALers-
A document summarizing the current state of our thinking regarding the scope, approach, and concepts for SIAV2 is now available on the DAL SIA TWiki page. You can find it at
http://www.ivoa.net/internal/IVOA/SiaInterface/SIA-V2-Analysis.pdf
This will be part of what we discuss regarding SIAV2 at the DAL WG session later this week, however this session will be fairly brief and we can have more detailed discussions elsewhere during the meeting and in subsequent email.
Note SIAV2 is closely linked to SSA and also has quite a bit of overlap with what is planned for TAP - the service interface and Grid capabilities in particular are much the same for all three, and the query interface is very similar for both SIAV2 and SSA. Hence some familiarity with SSA, including the form of the service interface, the query parameters and query response, and the underlying data models, will be very relevant to understanding what is proposed for SIAV2 as well.