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And/Or Hierarchies and Round Abstraction

  • 1Radu Grosu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1893)

Abstract

Sequential and parallel composition are the most fundamental operators for incremental construction of complex concurrent systems. They reflect the temporal and respectively the spatial properties of these systems. Hiding temporal detail like internal computation steps supports temporal scalability and may turn an asynchronous system to a synchronous one. Hiding spatial detail like internal variables supports spatial scalability and may turn a synchronous system to an asynchronous one. In this paper we show on hand of several examples that a language explicitly supporting both sequential and parallel composition operators is a natural setting for designing heterogeneous synchronous and asynchronous systems. The language we use is Shrm, a visual language that backs up the popular and/or hierarchies of statecharts with a well defined compositional semantics.

Keywords

Model Check Global Variable Exit Point Parallel Composition Reactive Module 
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 Berlin Heidelberg 2000

Authors and Affiliations

  • 1Radu Grosu
    • 1
  1. 1.Department of Computer and Information ScienceUniversity of PennsylvaniaUSA

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