Hi Hiro, I'm sending you the info about the following action:

Sergio: Could you provide a reference to a work performed by colleagues in Padova about generic query interface?

The service I refer to is CEMon (Luigi Zangrando in copy is the designer). Here is a summary of the info: 1. CEMon website: http://grid.pd.infn.it/cemon/ 2. the WSDL documentation is here: http://grid.pd.infn.it/cemon/wsdl/ 3. the service is mainly targeted at push/pull mode delivery of events; 4. the GetTopicEvent includes options such as "dialect", which enables to specify which format you want the info 5. there is a visibility concept, to define who can access what (user, group, other like in linux: group can be a VO) 6. the service interface can be easily extended to include the query expression and the query format Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40127 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi