JSDL defines in the GFD-R.056 document (www.gridforum.org/documents/GFD.56.pdf) following resource element types: • CandidateHosts • FileSystem • ExclusiveExecution • OperatingSystem • CPUArchitecture • IndividualCPUSpeed • IndividualCPUTime • IndividualCPUCount • IndividualNetworkBandwidth • IndividualPhysicalMemory • IndividualVirtualMemory • IndividualDiskSpace • TotalCPUTime • TotalCPUCount • TotalPhysicalMemory • TotalVirtualMemory • TotalDiskSpace • TotalResourceCount Regards Daniel