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 ebook constitutes the refereed complaints of 2 colocated overseas 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 provided have been rigorously reviewed and chosen from fifty nine submissions. For EPEW 2005 simply 10 papers - of the 32 submitted - have been approved for presentation; they take care of queueing concept, bounding suggestions, stochastic version checking, conversation schemes research for high-speed LAN, QOS research in instant ad-hoc networks and optical networks research. the most subject matters of the ten papers permitted for WS-FM 2005 - from 27 submissions - comprise: 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 concepts for WS (transactions, contract, coordination companies, etc.); semantics-based dynamic WS discovery prone (based on Semantic Web/Ontology strategies or different semantic theories); safety, functionality evaluate and caliber of provider of WS; semi-structured information and XML similar applied sciences; comparisons with diversified similar technologies/approaches.

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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

This publication constitutes the refereed court cases of 2 colocated foreign workshops EPEW 2005 (European functionality Engineering Workshop) and WS-FM 2005 (Web companies and Formal equipment) held in Versailles, France in September 2005. The 20 revised complete papers offered have been rigorously reviewed and chosen from fifty nine submissions.

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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In case of PiDuce, this WSDL document also contains the schema of the service. However our semantics does not require that the schema information is sent together with the message. For example, a service receiving a message on a generic channel and forwarding it to another service does not need to know the schema of the received message. Hence a lazy implementation of schema requests is plausible. Such an implementation downloads schemas only if they are needed by the pattern matching algorithm in the communication and the invocation rules.

G. Meredith them. It is worth noticing that, due to the subschema relation, the static semantics also entails subtyping polymorphism. The static semantics is demonstrated to be sound; this yields a subject reduction property (a well-typed process transits to well typed processes) and a progress property (a well-typed process does not get stuck). Related Works. PiDuce has been strongly influenced by XDuce, a functional language for XML processing [12]. In XDuce, values do not carry channels, and the subschema relation is never needed at run-time.

1. If Γ 2. If Γ V : S and S <: T + R then either S <: T or S <: R. V : S and S <: schof(F ) then there is σ such that Γ (Γ )u[V ] V ∈ F ❀ σ. u(F ) u(F ) 3. If Γ P , P → and P → then there are F and σ such that P → and Γ + Γ V ∈ F ❀ σ. Proof. The proof of items 1 and 2 are simple and therefore omitted. As regards u(F ) item 3, we consider the proof of P → . By Theorem 1(2) applied to Γ u(F ) P and u(F ) P → we obtain Γ u : S . Then, we consider the proof tree of P → . P , for some Γ . This judgment must have been proved with an i i i i∈I instance of (inp) that yields S <: j∈I,uj =u schof(Fi ).

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