Bounded MSC Communication

نویسندگان

  • Markus Lohrey
  • Anca Muscholl
چکیده

Message sequence charts (MSCs) and high-level message sequence charts (HMSCs) are popular formalisms for the speciication of communication protocols between asynchronous processes. An important concept in this context is the size of the communication buuers used between processes. Since real systems impose limitations on the capacity (or speed) of communication links, we ask whether a given HMSC can be implemented with respect to a given buuer size imposed by the environment. We introduce four diierent measures for buuer sizes and investigate for each of these measures the complexity of deciding whether a given MSC (or HMSC, or hierarchical MSC) satisses a given bound on the buuer size. The complexity of these problems varies between the classes P, NP, and coNP.

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تاریخ انتشار 2002