Line 496 - If this is the description of an offer/bid/award then there are several fields missing. If this is a description of the product then time, availabliity are not required but other fields are. See CIM and IRC information models.

Apply this comment to the conformance section.

Added request for specific description of the missing elements.

Note that many of the fields are optional, and that instances of the class may be used in many environments; consistency and validity vary according to the use and the contained information.