Describing Software Specification by Combining SysML with the B Method

This paper shows a methodology to describe software specifications combining SysML with the B method. Modeling languages of a system such as SysML do not guarantee the correctness of the specification. In addition, formal methods including the B method are generally difficult to use for describing software specifications from ambiguous requirements at the start of the development, because it is not easy for software developers to denote the formal notations. Our methodology redeems those shortcomings by iterating processes which translate SysML diagrams to the abstract machine notations of the B method. At the last part of this paper, we showed the effectiveness of our methodology with an example.