Failures Handling Strategies of Web Services Composition Base on Petri Nets

Wang, Guan; Yang, Bin

doi:10.1007/978-3-319-95957-3_63

Cited by 1 publication

(1 citation statement)

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“…While, in case of unexpected changes, the replacement-based approaches substitute services by new selected ones according to the original specification. In Wang and Yang (2018) for example, propose the concept of dynamic Petri nets to describe fault-handling strategies for service compositions, considering dynamic replacement of transitions. The optimisation of the service matching process, as the one presented in the current work, is stated as a challenge for the implementation of the fault-handling strategies.…”

Section: Self-healing Of Web Servicesmentioning

confidence: 99%

Self-healing of web service compositions: a specification rewriting approach

Toledo¹,

Costa²,

Musicante³

et al. 2020

IJWGS

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We present an approach that improves the robustness of web service compositions enabling their recovery from failures that can happen at different execution times. We first present a taxonomy of failures as an overview of previous research works on the topic of fault recovery of service compositions. The resulting classification is used to propose our self-healing method for web service compositions. The proposed method, based on the refinement process of compositions, takes user preferences into account to generate the best possible recovering compositions. In order to validate our approach, we produced a prototype implementation capable of simulating and analysing different scenarios of faults. Our work introduces algorithms for generating synthetic compositions and web services. In this setting, the recovery time, the user preference degradation and the impact of different locations of failure are investigated under different strategies, namely local, partial or total recovery. These strategies represent different levels of intervention on the composition.

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Section: Self-healing Of Web Servicesmentioning

confidence: 99%