An architecture based on computing with words to support runtime reconfiguration decisions of service-based systems

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Abstract

Service-based systems (SBSs) need to be reconfigured when there is evidence that the selected Web services configurations no further satisfy the specifications models and, thus the decision-related models will need to be updated accordingly. However, such updates need to be performed at the right pace. On the one hand, if the updates are not quickly enough, the reconfigurations that are required may not be detected due to the obsolescence of the specification models used at runtime, which were specified at design-time. On the other hand, the other extreme is to promote premature reconfiguration decisions that are based on models that may be highly sensitive to environmental fluctuations and which may affect the stability of these systems. To deal with the required trade-offs of this situation, this paper proposes the use of linguistic decision-making (LDM) models to represent specification models of SBSs and a dynamic computing-with-words (CWW) architecture to dynamically assess the models by using a multi-period multi-attribute decision making (MP-MADM) approach. The proposed solution allows systems under dynamic environments to offer improved system stability by better managing the trade-off between the potential obsolescence of the specification models, and the required dynamic sensitivity and update of these models

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Original languageEnglish
Article number5571
Pages (from-to)272 - 281
Number of pages10
JournalInternational Journal of Computational Intelligence System
Volume11
Issue number1
Early online date12 Dec 2017
DOIs
StatePublished - 1 Jan 2018

Bibliographic note

Copyright © 2018, the Authors. Published by Atlantis Press. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). Funding: UNAB Grant DI-1303-16/RG, grant FONDEF IDeA ID16I10322, FONDECYT Grant 1140408.

    Keywords

  • service-based systems, quality-of-service, linguistic decision making models, computing with words

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