TY  - JOUR
ID  - SisLab1900
UR  - https://springerplus.springeropen.com/articles/10.1186/s40064-016-2657-8
IS  - 1000
A1  - Le, Hong Anh
A1  - Shin, Nakajima
A1  - Truong, Ninh Thuan
Y1  - 2016/07/07/
N2  - 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.
PB  - Springer
JF  - SpringerPlus
VL  - 5
TI  - Formal analysis of imprecise system requirements with Event?B
AV  - public
ER  -