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Paper Details

  title = "{C}ompositions of {C}oncurrent {P}rocesses",
  author= "Burgin, Mark and Smith, Marc L.",
  editor= "Welch, Peter H. and Kerridge, Jon and Barnes, Frederick R. M.",
  pages = "281--296",
  booktitle= "{C}ommunicating {P}rocess {A}rchitectures 2006",
  isbn= "978-1-58603-671-3",
  year= "2006",
  month= "sep",
  abstract= "Using the extended model for view-centric reasoning, EVCR,
     we focus on the many possibilities for concurrent processes
     to be composed. EVCR is an extension of VCR, both models of
     true concurrency; VCR is an extension of CSP, which is based
     on an interleaved semantics for modeling concurrency. VCR,
     like CSP, utilizes traces of instantaneous events, though
     VCR permits recording parallel events to preserve the
     perception of simultaneity by the observer(s). But observed
     simultaneity is a contentious issue, especially for events
     that are supposed to be instantaneous. EVCR addresses this
     issue in two ways. First, events are no longer
     instantaneous; they occur for some duration of time. Second,
     parallel events need not be an all-or-nothing proposition;
     it is possible for events to partially overlap in time.
     Thus, EVCR provides a more realistic and appropriate level
     of abstraction for reasoning about concurrent processes.
     With EVCR, we begin to move from observation to the
     specification of concurrency, and the compositions of
     concurrent processes. As one example of specification, we
     introduce a description of I/O-PAR composition that leads to
     simplified reasoning about composite I/O-PAR processes."

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