Communication patterns for expressing real-time requirements using MSC and their application to testing

This paper introduces real-time communication patterns (RTC-patterns) for capturing real-time requirements of communication systems. RTC-patterns for some of the most common real-time requirements are presented. They are formalized by using Message Sequence Charts (MSCs). The application of RTC-patterns to testing is explained by an example. The example shows how real-time requirements which are expressed using RTC-patterns can be related to TIMEDTTCN-3 evaluation functions.