Notes from DAIS session 31/01/2007 ================================== Notes: Neil Chue Hong Slides presented available from: http://www.ogf.org/gf/event_schedule/?id=547 12 people attended Mario Antonioletti presented: Status Update slides Dave Pearson, the DAIS WG chair, apologises for his absence but he was unable to travel. An object based DAI-O realisation led by Thomas Soddemann has stalled since GGF14. Mario put up a slide showing the status of implementations and interoperability testing. Q: Is the test suite developed by the UoM targeted at interoperability testing? Or another sort of testing? A: Targeted at interoperability, based on interoperability informational document. Q: When you say interoperability, you remain in the same context, i.e. DAIX only or DAIR only? A: Yes, DAIX interop and DAIR interop are separate. Mario asked for volunteers to help write specs Mario noted that DAIS are going to look at a draft SAGA data access document. Isao Kojima presented: RDF(S) Querying Specification Q (Andre): What's the reason for not supporting update operations? A: We focus on query - there is no standard just now which supports update but we keep this open for the future. Q (Mario): Is anyone working on update languages? A: There was, but the activity appears to have stopped now Q (Mario): Is anyone interested in contributing? Silence Q (Mario): You started off with an example of what you did. How big is your ontology, how many triples? A: It's very small ontology using Jenas as the background server. Q (Mario): SPARQL is a proposed recommendation, how long to full recommendation status? A: Currently a candidate recommendation, however recently rewinded some of the functionality. There should not be too much impact from changes though. Miguel Esteban Gutierrez presented: Ontology Access Q (Mario): Presumably you don't need to follow the hierarchy? A: No, but you need to know the resource you want to get to. Q (Mario): What is a repository, a graph, a collection of graphs? A: It is a collection of triples Q (Mario): Are you going to standardise the language across the documents? A: Yes, we have to! We plan to get together with the Tokyo team, this may lead to renaming of some operations. Malcolm Atkinson: Dave De Roure is the official OGF liaison with W3C but we should think how we get some sort of endorsement from W3C in this area. Miguel: is giving a tutorial at the W3C conference at Banff. Q (Andre): Who are the "customers"? and how are you involved with them? A (Mario): We worked closely with IBM and Oracle in the beginning - we've not had enough buy-in from people who control database products. OGSA-DAI will be using this interface and the OSU BMI team also plan to implement it. It has been good as a basis for moving forward into the RDF domain. However uptake for DAIS has been slow. Savas Parastatidis: entered the room late and promised to have a implementation of DAI-RDF by tomorrow ;-) Meeting closed. +-----------------------------------------------------------------------+ |Mario Antonioletti:EPCC,JCMB,The King's Buildings,Edinburgh EH9 3JZ. | |Tel:0131 650 5141|mario@epcc.ed.ac.uk|http://www.epcc.ed.ac.uk/~mario/ | +-----------------------------------------------------------------------+