MoDeST: A compositional modeling formalism for real-time and stochastic systems

H.C. Bohnenkamp, P.R. d' Argenio, H. Hermanns, Joost P. Katoen

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    This paper presents Modest (MOdeling and DEscription language for Stochastic Timed systems), a formalism that is aimed to support (i) the modular description of reactive system's behaviour while covering both (ii) functional and (iii) nonfunctional system aspects such as timing and quality-of-service constraints in a single specification. The language contains features such as simple and structured data types, structuring mechanisms like parallel composition and abstraction, means to control the granularity of assignments, exception handling, and non-deterministic and random branching and timing. Modest can be viewed as an overarching notation for a wide spectrum of models, ranging from labeled transition systems, to timed automata (and probabilistic variants thereof) as well as prominent stochastic processes such as (generalized semi-)Markov chains and decision processes. The paper describes the design rationales and details of the syntax and semantics.
    Original languageUndefined
    Place of PublicationEnschede
    PublisherINF-Centre for Telematics and Information Techn.
    Number of pages36
    Publication statusPublished - Nov 2004

    Publication series

    NameCTIT technical report series
    PublisherUniversity of Twente, Centre for Telematics and Information Technology (CTIT)


    • METIS-220860
    • EWI-5760
    • IR-48984

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