A METHODOLOGY AND SUPPORT TOOLS FOR ANALYSIS OF REAL-TIME SPECIFICATIONS
Douglas A. Stuart, Aloysius K. Mok, Farnam Jahanian · International Journal of Software Engineering and Knowledge Engineering · 1996
As software control of time-critical functions in embedded systems becomes more common, a means for the precise specification of their behavior and formal methods for analyzing system requirements become increasingly important. Modechart is a graphical specification language introduced to meet this need. The main focus of this paper is on methods and supporting tools for representing and reasoning about properties of time-critical systems specified in Modechart. The paper describes a verification methodology which takes advantage of the structuring inherent in a Modechart specification to determine whether a system specification satisfies the required properties. The paper also describes the implementation of a mechanical verifier, based on the proposed approach, which has been recently integrated as part of the Modechart Toolset prototype development environment from the Naval Research Lab [7].