Toward an object-oriented modeling approach with representation of temporal knowledge

Object-oriented conceptual modeling captures real world entities as close as possible. Data and functions on encapsulated in an object. This allows software to be easily adapted to changes in the application. We present an object-oriented approach for modeling and analysis of time dependent systems. It describes the structural aspect and the time critical behavioral aspect of objects in one model and from which formal analysis can be conducted to verify desirable properties. In particular, the main concern of behavioral modeling is to present the specification of temporal knowledge about object activities such as their chronological ordering, durations, and time limits