Read e-book online Abstract state machines: A method for high-level system PDF

By Egon Börger, Robert Stärk

ISBN-10: 3540007024

ISBN-13: 9783540007029

This booklet combines the positive factors of a textbook and a instruction manual Researchers will locate the following the main finished description of ASMs to be had this day and execs will use it as a "modeling guide of the operating software program engineer. As a textbook it helps self-study or it could actually shape the root of a lecture direction.

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Additional resources for Abstract state machines: A method for high-level system design and analysis

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The pairs of states in the runs one wants to relate through the refinement, including usually the correspondence of initial and (if there are any) of final states, – the notion of abstract computation segments τ1 , . . , τm , where each τi represents a single M -step, and of corresponding refined computation segments σ1 , . . e. pairs of (possibly sets of) locations one wants to relate in corresponding states, where locations represent abstract containers for data (see the definition of ASM locations below), – the notion the of equivalence ≡ of the data in the locations of interest; these local data equivalences usually accumulate to the notion of the equivalence of corresponding states of interest.

Val (expn ), timen ) > forall i ≤ n timei = currTime + timei reject can be defined recursively on transaction lists Trans as follows: reject(Trans, Val ) = if Trans = empty or val (last(Trans)) = Val then empty else reject(front(Trans, Val )) ∗ last(Trans) A further variation of inertial signal assignments by an explicit pulse rejection limit, which may be different from the first driver element, is captured by a simple modification of driver defined in [111]. This book is full of further examples which illustrate this flexibility in exploiting the advantages of different specification styles within the uniform semantical ASM framework.

In Sect. 3 we illustrate 28 2 ASM Design and Analysis Method the definitions, as well as the ASM ground model and analysis method, by the celebrated LIFT example. 4 provides a more detailed recursive definition of the syntax and the semantics of basic ASMs. In this section we use two fundamental concepts of computation theory and logic, namely of the transition system and of the interpretation of predicate logic terms and formulae. g. see [70]) and are reviewed in Sect. 4. 23 Also, some extensions by particular though for applications rather useful features were introduced, dealing with forms of non-determinism (“choice” or existential quantification) and of unrestricted synchronous parallelism (universal quantification “forall”).

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Abstract state machines: A method for high-level system design and analysis by Egon Börger, Robert Stärk


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