CAN/CSA-Z243.102-90

This National Standard of Canada is equivalent to International Standard ISO 9074-1989. It defines the semantics and syntax of the Formal Description Technique Estelle. Estelle is in general used for the formal description of distributed, concurrent information processing systems. In particular Estelle can be used formally to describe the service definitions and protocol specifications of the layers of Open Systems Interconnection described in ISO 7498. This International Standard does not define methods for the verification of specifications written in Estelle.