7/1997 : Temporal Firewalls in Large Distributed Real-Time Systems

RR Number

7/1997

Conference

6th IEEE Computer Society Workshop on Future Trends of Distributed Computing Systems

Author(s)

Hermann Kopetz, Roman Nossal

Abstract

The complexity of large distributed real-time systems can be reduced by partitioning the system into a set of almost autonomous subsystems that are connected by stable control-free interfaces, called temporal firewalls. A temporal firewall provides an understandable abstraction of the subsystem behind the firewall, confines the impact of most changes to the encapsulated subsystem, and limits the potential of error propagation. This paper descibes the stable properties of temporal firewalls and discusses where, in a large distributed real-time architecture, temporal firewalls should be placed. The final section investigates some possibilities of how to renegotiate the static properties of temporal firewalls in case the controlled object changes its behavior substantially.

Bibtex

@article{ kopetz:1997-7,
  author =       "Hermann Kopetz and Roman Nossal",
  title =        "Temporal Firewalls in Large Distributed Real-Time Systems",
  journal =      "6th IEEE Computer Society Workshop on Future Trends of Distributed Computing Systems"
}

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