Modeling the environment and the interface for real-time monitoring and control

The traffic control architecture of an integrated network is modeled as a real-time system that asynchronously interacts with its environment, i.e., the network through an interface. The interface is specified by a set of state variables to which sensors are attached for monitoring. The entity-relationship model is used to represent the software and hardware objects in the network. The interface is modeled using the entity-relationship model and a computation model. How to translate the specification of the environment and the interface into an object-oriented system is described.<>