Use cases for distributed real-time software architectures

This paper describes how use cases can be applied to the architectural design of distributed real-time applications. In order to benefit from use cases in distributed real-time design it is necessary to extend use cases, particularly in the design phase, when important design decisions need to be made. To achieve this, use cases are integrated with CODARTS (Concurrent Design Approach for Real-Time Systems) distributed design concepts. Three different categories of use cases are described here, client/server use cases, subscription use cases and real-time control use cases. Different forms of message communication are associated with the different use case types. The overall design of the distributed real-time system is achieved by composing it from the use cases