On two models of noninterference: Rushby and Greve, Wilding, and Vanfleet

Contains fulltext : 135068.pdf (preprint version ) (Closed access)Computer Safety, Reliability, and Security 33rd International Conference, SAFECOMP 2014, Florence, Italy, September 10-12, 201

Deduction in the Verification Support Environment (VSE)

The reliability of complex software systems is becoming increasingly important for the technical systems they are embedded in. In order to assure the highest levels of trustworthiness of software formal methods for the development of software are required. The VSE-tool was developed by a consortium of German universities and industry to make a tool available which supports this formal development process. VSE is based on a particular method for programming in the large. This method is embodied in an administration system to edit and maintain formal developments. A deduction component is integrated into this administration system in order to provide proof support for the formal concepts. In parallel to the development of the system itself, two large case studies were conducted in close collaboration with an industrial partner. In both cases components of systems previously developed by the industry were redeveloped from scratch, starting with a formal specification derived..