The CIM reference I was using at the F2F was a preliminary release of CIM 2.9, and currently we're only using the operating system types from them (in their human-readable versions[*]). There is also a processor typing model available, but it's just about unusable from our PoV because CIM does not support partial order relations on its enumeration types. (The problem is also there with OSes, but the amount of cross-emulation is much less.) The enumeration was taken from the ValueMap for System -> Operating System -> CIM_OperatingSystem -> OSType part of the overall model (Device sub-model, Operating System page, CIM_OperatingSystem class, OSType field), though it is necessary to read the MOFs or the XML to actually get the values. (Messy!) The processor part of the model would be the ValueMap from Device -> Processors -> Processor -> Family, except I find it hard to see many people being happy at distinguishing between "AMD Athlon(TM) 64 Processor Family" and "AMD Opteron(TM) Processor Family" for almost all applications! The reference to the final version of CIM 2.9.0 is at http://www.dmtf.org/standards/cim/cim_schema_v29 but I actually used http://www.dmtf.org/standards/cim/cim_schema_v29_prelim if that matters. Note that as far as we're concerned, I think updates to the list of OS types shouldn't be a problem. Donal. [* The core model is actually numeric, but we really don't want to go that route; it overexposes the underlying implementation details. ]