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Anybody in this group have any experience using / implementing the z39.50 holdings schema? http://www.loc.gov/z3950/agency/defns/holdings1-4.html As part of the DLF ILS Discovery Interface Task Force, we are looking for a good schema to define holdings and item-related information (such as circulation status). While MARCXML is always an option for MARC holdings, I have the sense (aka, I know) that not all institutions / ILSs create MARC holdings for all records. So it would be nice to have a schema into which it would be easy to translate either a MARC holdings record or just local holdings stored in some other way + circulation information. The rumor on the street is that z39.50 holdings schema is too complex and has never really been used. Anyone want to confirm or deny? I'm also interested in the up and coming ISO Holdings Schema (ISO 20775) that it sounds like has been motivated along by OCLC-PICA. But I don't have much information on that, so I'd be interested in hearing from anyone who knows more about that one, as well. Thanks, -emily -- Emily Lynema Systems Librarian for Digital Projects Information Technology, NCSU Libraries 919-513-8031 [log in to unmask]