This document is a NOTE made available by W3C for discussion only.
All mail is archived and available for review.
This note will briefly describe these systems then relate them to each other. RDF-Schema includes a facility to indicate that certain classes are subclasses of others, and provides a small number of basic classes. A use case model that states the requirements of the user 2. A class model that captures the static information structure of objects 3. A state model that describes the dynamic behavior of objects 4.