Formalization and validation of a subset of the European Train Control System
Proceedings of the 32nd ACM/IEEE International Conference on Software Engineering - Volume 2
Formalizing requirements with object models and temporal constraints
Software and Systems Modeling (SoSyM)
Towards a notion of unsatisfiable cores for LTL
FSEN'09 Proceedings of the Third IPM international conference on Fundamentals of Software Engineering
Towards a notion of unsatisfiable and unrealizable cores for LTL
Science of Computer Programming
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Flaws in requirements may have severe impacts on the subsequent phases of the development flow. However, an effective validation of requirements can be considered a largely open problem.In this paper, we propose a new methodology for requirements validation, based on the use of formal methods. The methodology consists of three main phases: first, an informal analysis is carried out, resulting in a structured version of the requirements, where each fragment is classified according to a fixed taxonomy. In the second phase, each fragment is then mapped onto a subset of UML, with a precise semantics, and enriched with static and temporal constraints. The third phase consists of the application of specialized formal analysis techniques, optimized to deal with properties (rather than with models).