The Reassessment of Preferences of Non-Functional Requirements for Better Informed Decision-making in Self-Adaptation

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Abstract

Decision-making requires the quantification and trade-off of multiple non-functional requirements (NFRs) and the analysis of costs and benefits between alternative solutions. Different techniques have been used to specify utility preferences for NFRs and decision-making strategies of self-adaptive systems (SAS). These preferences are defined during design-time. It is well known that correctly identifying the weight of the NFRs is a major difficulty. In this paper we present initial results of a novel approach that provides a set of criteria to re-assess NFRs preferences given new evidence found at runtime using dynamic decision networks (DDNs). The approach use both conditional probabilities provided by DDNs and the concept of Bayesian surprise. The results show that our approach supports better informed decisions under uncertainty by identifying new situations where the current SAS preferences may need to be re-evaluated to improve the levels of satisfaction of NFRs.

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  • The Reassessment of Preferences of Non-functional Requirements

    Rights statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    Submitted manuscript, 502 KB, PDF-document

Details

Publication date12 Sep 2016
Publication titleProceedings - 2016 IEEE 24th International Requirements Engineering Conference Workshops
Place of PublicationPiscataway, NJ (US)
PublisherIEEE
Pages32-38
Number of pages7
ISBN (Electronic)978-1-5090-3694-3
Original languageEnglish
Event2016 IEEE 24th International Requirements Engineering Conference Workshops - Beijing, China
Duration: 12 Sep 201616 Sep 2016

Workshop

Workshop2016 IEEE 24th International Requirements Engineering Conference Workshops
Abbreviated titleREW 2016
CountryChina
CityBeijing
Period12/09/1616/09/16

Bibliographic note

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    Keywords

  • decision making, non-functional requirements trade-off, self-adaptation, uncertainty

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