Formal Methods and Object Technology

Rationale Software engineering aims to develop software by using approaches which en­ able large and complex program suites to be developed in a systematic way. However, it is well known that it is difficult to obtain the level of assurance of correctness required for safety critical software using old fashioned program­ ming techniques. The level of safety required becomes particularly high in software which is to function without a break for long periods of time, since the software cannot be r