Dear Semantic Grid RG members; We are proposing to discuss GGF DAIS(Database Access and Integration Service) specification for RDF databases. As you know, DAIS working group is discussing the WS based interface to access distributed/remote database systems. The specification almost completed is WS-DAI(Database Access and Integration) in which Relational, XML, Object Databases and Files will be accessed in a single WS-DAI framework. DB specific functions are defined by separate specs like WS-DAIR(Relational) and WS-DAIX(XML) as functional extensions to the core WS-DAI. Based on this approach, we want to discuss about WS-DAI-RDF specification to handle RDF databases. As you also know, W3C is discussing the RDF standard query language SPARQL and several RDF databases like Jena and Sesame support the language. W3C is also discussing the wsdl based access protocol for SPARQL and this should cope with GGF WS-DAIs. AIST has several RDF related database R&D projects and we strongly feel the importance of DAIS specification for RDF databases which assumes future standard SPARQL. I think this issue can be discussed within DAIS-WG, however, handling RDF database within the grid middleware such as WS-RF and OGSA-DAI seems to be very important to the people of this RG. If you are interested in this topic, please mail me(or to this ml) We have a plan to have a Bof in GGF16 at Athens. Sincerely Isao -------------------------------------------- Isao Kojima Leader Data Grid Team Grid Technology Research Center A.I.S.T. Japan