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State Machine Specification with Reusability
Goichi ITABASHI Kaoru TAKAHASHI Yasushi KATO Takuo SUGANUMA Norio SHIRATORI
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/11/01
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Concurrent Systems and Hybrid Systems)
Category: Concurrent Systems
state machine, constraint, inheritance, refinement and expansion algorithm,
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We introduce an inheritance concept into a specification method of a concurrent system in order to reuse and refine existing specifications. Reusability by inheritance is emphasized in this paper. We take multiple inheritance to enable to reuse several specifications at a time. An upper specification can be skillfully reused by dividing inherited parts and non-inherited ones if the specification contains unnecessary parts for a lower specification. As an application, we specify the FIPA contract net interaction protocol (IP) with the function of an agent authentication. This is accomplished by using multiple inheritance. We also specify the FIPA iterated contract net IP by reusing the FIPA contract net IP. We have been developing a validation support tool for specifications described with the proposed method.