Download Formal Techniques for Computer Systems and Business by Peter Harrison (auth.), Mario Bravetti, Leïla Kloul, PDF

By Peter Harrison (auth.), Mario Bravetti, Leïla Kloul, Gianluigi Zavattaro (eds.)

This booklet constitutes the refereed complaints of 2 colocated foreign workshops EPEW 2005 (European functionality Engineering Workshop) and WS-FM 2005 (Web companies and Formal tools) held in Versailles, France in September 2005.

The 20 revised complete papers offered have been conscientiously reviewed and chosen from fifty nine submissions. For EPEW 2005 basically 10 papers - of the 32 submitted - have been authorized for presentation; they take care of queueing idea, bounding recommendations, stochastic version checking, communique schemes research for high-speed LAN, QOS research in instant ad-hoc networks and optical networks research. the most themes of the ten papers accredited for WS-FM 2005 - from 27 submissions - contain: protocols and criteria for WS (SOAP, WSDL, UDDI, etc.); languages and outline methodologies for Choreography/Orchestration/Workflow (BPML, XLANG and BizTalk, WSFL, WS-BPEL, etc.); coordination thoughts for WS (transactions, contract, coordination providers, etc.); semantics-based dynamic WS discovery prone (based on Semantic Web/Ontology recommendations or different semantic theories); defense, functionality assessment and caliber of carrier of WS; semi-structured information and XML comparable applied sciences; comparisons with various comparable technologies/approaches.

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Additional info for Formal Techniques for Computer Systems and Business Processes: European Performance Engineering Workshop, EPEW 2005 and International Workshop on Web Services and Formal Methods, WS-FM 2005, Versailles, France, September 1-3, 2005. Proceedings

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Let Γ +u : S V : T and Γ V : S such that S <: S. Then Γ V {V /u} : T with T <: T . 2. Let Γ + u : S P and the free occurrences of u in P are not subjects of inputs. If Γ V : T , and T <: S then Γ P {V /u}. PiDuce: A Process Calculus with Native XML Datatypes 33 Proof. The demonstration is by induction on the structures of the proofs of Γ + u : S V : T and Γ + u : S P . We only discuss the case when the last rule is (out). Then P = w[V ] and the premises of the rule are the judgments Γ + u : S w : R and Γ + u : S V : S , and the predicate S <: R (1) We must prove Γ w[V ]{V /u}.

Let Γ be such that, for every u ∈ dom(Γ ), Γ (u) is labelled-determined. If Γ V : S then S is labelled-determined. 1 would be false if Γ were not well-formed. For instance take Γ = u : Empty and V = a[u]; then the hypotheses hold, but the conclusion is false. 2 is relevant because, at run-time, environments map variables to channel schemas. Henceforth communicated values always retain labelled-determined schemas. Typing Rules for Processes. Let Env(F ) be the following function taking a pattern and giving an environment: Env(S) Env(u : F ) Env(L[F ]) Env(L[F ],F ) = = = = ∅ u : schof(F ) + Env(F ) Env(F ) Env(F ) + Env(F ) It is worth noticing that, in u : schof(F ) + Env(F ) and Env(F ) + Env(F ), the summands have disjoint domains, due to the linearity constraint on patterns.

Castagna, and A. Frisch. CDuce: an XML-centric general-purpose language. In Proceedings of the 8th ACM SIGPLAN International Conference on Functional Programming (ICFP-03), pages 51–63. ACM Press, 2003. 6. K. Bhargavan, C. Fournet, A. Gordon, and R. Pucella. Tulafale: A security tool for web services. In Formal Methods for Components and Objects (FMCO 2003), volume 3188 of LNCS, pages 197–222. Springer, 2004. 7. R. Bruni, C. Laneve, and U. Montanari. Orchestrating transactions in join calculus.

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