Rigorous Methods for Software Construction and Analysis: by Sylvain Boulmé (auth.), Jean-Raymond Abrial, Uwe Glässer

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By Sylvain Boulmé (auth.), Jean-Raymond Abrial, Uwe Glässer (eds.)

This Festschrift quantity, released in honor of Egon Börger, includes 14 papers from a Dagstuhl Seminar, which was once equipped as a "Festkolloquium" at the social gathering of his sixtieth birthday in might 2006. concentrating on utilized formal tools, the amount covers quite a lot of utilized examine, spanning from theoretical and methodological foundations to functional purposes of summary kingdom Machines, B, and past, emphasizing common tools and instruments that, despite their applicational orientation, are nonetheless devoted to the best of mathematical rigor.

In specific, the papers tackle the subsequent valuable issues: methodological foundations of necessities specification and verification, characterization of specification languages and their logical foundations, complicated device environments and systematic integration of instruments, desktop assisted validation and verification, allotted algorithms and concurrent protocols, novel purposes in public safeguard, safety and privateness, business case reviews and event reviews, and the position of formal equipment in desktop technology education.

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Rigorous Methods for Software Construction and Analysis: Essays Dedicated to Egon Börger on the Occasion of His 60th Birthday

This Festschrift quantity, released in honor of Egon Börger, includes 14 papers from a Dagstuhl Seminar, which was once prepared as a "Festkolloquium" at the social gathering of his sixtieth birthday in may well 2006. targeting utilized formal tools, the amount covers a variety of utilized learn, spanning from theoretical and methodological foundations to sensible purposes of summary nation Machines, B, and past, emphasizing common tools and instruments that, despite their applicational orientation, are nonetheless dedicated to definitely the right of mathematical rigor.

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It also contains declarations of transition rules and definitions of axioms for constraints one wants to assume for some domains, functions, and transition rules of the ASM. 3 To Have an Interchange Format The interoperability among ASM tools can be (at least partially) achieved by a common interchange format. The work in [7] represents the first and the only attempt in this respect; it was based on the use of a pure XML format and unfortunately it has never been completed. Whenever a language or formalism is specified in terms of a MOF-compliant metamodel, the MOF enables a standard way to generate an XMI (XML Metadata Interchange) [34] interchange format for models in that language.

One concludes that t ⊆ f (x) and t ⊆ f (y). Both properties x ∈ / dom(t) and y ∈ / dom(t) are discharged. The idea is to propose an invariant expressing this fact: ∀ x · (x ∈ N − dom (t) =⇒ t ⊆ f (x)) In fact, the additional invariant tells us simply that a spanning tree always exists and that each node not in the domain of t is a candidate for the leadership and that node may become the leader. The leadership can be constrained by a variable attached to each node. A boolean variable, called root, forbids (freezes) the submission to the current node.

The refinement proof is based on the property dom(t) = N − {x}, whose proof is divided into the following steps: 1. x ∈ / dom(t): automatically discharged by the predicate prover. 2. N ⊆ dom(t) ∪ {x}: the proof is based on the induction principle over the spanning tree rooted by x f (x); the universally quantified variable is instantiated by dom(t) ∪ {x}. After this instantiation, the predicate prover automatically discharges the waiting goal. This proof summary of the first refinement is 10 proof obligations generated by the tool, two of which require interaction.

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