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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Formal methods in system design 10 (1997), S. 93-125 
    ISSN: 1572-8102
    Keywords: formal verification ; induction proofs ; formal methods ; homomorphic reduction ; modeling of distributed systems ; L-automata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Modeling distributed computer systems is known to be a challenging enterprise. Typically, distributed systems are comprised of large numbers of components whose coordination may require complex interactions. Modeling such systems more often than not leads to the nominal intractability of the resulting state space. Various formal methods have been proposed to address the modeling of coordination among distributed systems components. For the most part, however, these methods do not support formal verification mechanisms. By way of contrast, the L-automata/L-processes model supports formal verification mechanisms which in many examples can successfully circumvent state space explosion problems, and allow verification proofs to be extended to an arbitrary number of components. After reviewing L-automata/L-processes formalisms, we present here the formal specification of a fault-tolerant algorithm for a distributed computer system. We also expose the L-automata/L-processes verification of the distributed system, demonstrating how various techniques such as homomorphic reduction, induction, and linearization, can be used to overcome various problems which surface as one models large, complex systems.
    Type of Medium: Electronic Resource
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