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H. Kopetz:
"Time-Triggered Real-Time Computing";
2002.

Time-triggered (TT) distributed real-time computing systems are moving into the mainstream for the implementation of safety-critical applications in the aerospace and automotive sectors. This paper introduces the basic principles of a time-triggered real-time computing system, and elaborates on the benefits that can be gained from the availability of a global time base in general, and in specifying the linking interfaces of components in particular. It describes the concept of a temporal firewall that forms a fully specified operational interface of a component. The most important contribution of the TT-paradigm is the capability to precisely specify operational interfaces in the temporal domain and thus establish a sound basis for the composability of a design and the reuse of components in distributed real-time systems.

http://www.vmars.tuwien.ac.at/php/pserver/extern/docdetail.php?DID=897&viewmode=paper&year=2002