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Keep It Small, Keep It Real: Efficient Run-Time Verification of Web Service Compositions

  • Luciano Baresi
  • Domenico Bianculli
  • Sam Guinea
  • Paola Spoletini
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5522)

Abstract

Service compositions leverage remote services to deliver added-value distributed applications. Since services are administered and run by independent parties, the governance of service compositions is intrinsically decentralized and services may evolve independently over time. In this context, pre-deployment verification can only provide limited guarantees, while continuous run-time verification is needed to probe and guarantee the correctness of compositions at run time.

This paper addresses the issue of efficiency in the run-time verification of service compositions described in BPEL. It considers an existing monitoring approach based on ALBERT, which is a temporal logic language suitable for asserting both functional and non-functional properties, and shows how to obtain the efficient run-time verification of ALBERT formulae. The paper introduces an operational semantics for ALBERT through an extension of alternating automata, and explains how to optimize it to produce smarter, and thus more efficient, encodings of defined formulae. The optimized operational semantics can then be the basis for an efficient implementation of the run-time verification framework.

Keywords

Temporal Logic Service Composition Operational Semantic Linear Temporal Logic Standard Semantic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© IFIP International Federation for Information Processing 2009

Authors and Affiliations

  • Luciano Baresi
    • 1
  • Domenico Bianculli
    • 2
  • Sam Guinea
    • 1
  • Paola Spoletini
    • 3
  1. 1.Politecnico di Milano - DEEP-SE Group - DEI, MilanoItaly
  2. 2.Faculty of InformaticsUniversity of LuganoLuganoSwitzerland
  3. 3.Università dell’Insubria - DSCPI, ComoItaly

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