Description: The description of a capability or limitation of a capability of the system. An entry will exist for each domain and mechanism specific ability the system has. In the case of a domain specific capability with no mechanism specific parameters, the pmCapabilitiesSubType and all other columns may be null. Entries will exist that contain values for the pmCapabilitiesRestrictOID, pmCapabilitiesRestrictType, pmCapabilitiesRestrictValue and pmCapabilitiesRestrictString objects only when an implementation is reporting a mechanism specific restriction. Multiple entries are possible when more than one restriction for a type or subtype are needed.