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A Linguistic Framework for Dynamic Composition of Dependability Protocols

  • Gul Agha
  • Svend Frølund
  • Rajendra Panwar
  • Daniel Sturman
Part of the Dependable Computing and Fault-Tolerant Systems book series (DEPENDABLECOMP, volume 8)

Abstract

We present a language framework for describing dependable systems which emphasizes modularity and composition. Dependability and functionality aspects of an application may be described separately providing a separation of design concerns. Futhermore, the dependability protocols of an application may be constructed bottom-up as simple protocols that are composed into more complex protocols. Composition makes it easier to reason about dependability and supports the construction of general reusable dependability schemes. A significant aspect of our language framework is that dependability protocols may be loaded into a running application and installed dynamically. Dynamic installation makes it possible to impose additional dependability protocols on a server as clients with new dependability demands are integrated into a system. Similarly, if a given dependability protocol is only necessary during some critical phase of execution, it may be installed during that period only.

Keywords

Base Object Runtime System Incoming Message Original Server Dependability Protocol 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1993

Authors and Affiliations

  • Gul Agha
    • 1
  • Svend Frølund
    • 1
  • Rajendra Panwar
    • 1
  • Daniel Sturman
    • 1
  1. 1.Department of Computer ScienceUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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