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Evaluating Compliance : From LTL to Abductive Logic Programming

100%

Chesani F. , Gavanelli M. , Lamma E. , Mello P. , Montali M.

2018

tom Vol. 159, nr 1/2

35--63

The compliance verification task amounts to establishing if the execution of a system, given in terms of observed happened events, does respect a given property. In the past both the frameworks of Temporal Logics and Logic Programming have been extensively exploited to assess compliance in different domains, such as normative multi-agent systems, business process management and service oriented computing. In this work we review the LTL and SCIFF frameworks in the light of compliance evaluation, and formally investigate the relationship between the two approaches. We define a notion of compliance within each approach, and then we show that an arbitrary LTL formula can be expressed in SCIFF, by providing a translation procedure from LTL to SCIFF which preserves compliance.

Abductive Logic Programming as an Effective Technology for the Static Verification of Declarative Business Processes

86%

Montali M. , Torroni P. , Chesani F. , Mello P. , Alberti M. , Lamma E.

2010

tom Vol. 102, nr 3/4

325-361

We discuss the static verification of declarative Business Processes. We identify four desiderata about verifiers, and propose a concrete framework which satisfies them. The framework is based on the ConDec graphical notation for modeling Business Processes, and on Abductive Logic Programming technology for verification of properties. Empirical evidence shows that our verification method seems to perform and scale better, in most cases, than other state of the art techniques (model checkers, in particular). A detailed study of our framework's theoretical properties proves that our approach is sound and complete when applied to ConDec models that do not contain loops, and it is guaranteed to terminate when applied to models that contain loops.