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Formal analysis of imprecise system requirements with Event‑B

Le, Hong Anh and Shin, Nakajima and Truong, Ninh Thuan (2016) Formal analysis of imprecise system requirements with Event‑B. SpringerPlus, 5 (1000).

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Formal analysis of functional properties of system requirements needs precise descriptions. However, the stakeholders sometimes describe the system with ambiguous, vague or fuzzy terms, hence formal frameworks for modeling and verifying such requirements are desirable. The Fuzzy If–Then rules have been used for imprecise requirements representation, but verifying their functional properties still needs new methods. In this paper, we propose a refinement-based modeling approach for specification and verification of such requirements. First, we introduce a representation of imprecise requirements in the set theory. Then we make use of Event-B refinement providing a set of translation rules from Fuzzy If–Then rules to Event-B notations. After that, we show how to verify both safety and eventuality properties with RODIN/EventB. Finally, we illustrate the proposed method on the example of Crane Controller.

Item Type: Article
Subjects: Information Technology (IT)
ISI-indexed journals
Divisions: Faculty of Information Technology (FIT)
Depositing User: Prof. Ninh Thuan Truong
Date Deposited: 24 Nov 2016 08:59
Last Modified: 24 Nov 2016 08:59

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