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

Luis H. Garcia Paucar; Nelly Bencomo

doi:10.1109/REW.2016.020

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

Luis H. Garcia Paucar, Nelly Bencomo

Research output: Chapter in Book/Published conference output › Conference publication

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.

Original language	English
Title of host publication	Proceedings - 2016 IEEE 24th International Requirements Engineering Conference Workshops
Place of Publication	Piscataway, NJ (US)
Publisher	IEEE
Pages	32-38
Number of pages	7
ISBN (Electronic)	978-1-5090-3694-3
DOIs	https://doi.org/10.1109/REW.2016.020
Publication status	Published - 12 Sept 2016
Event	2016 IEEE 24th International Requirements Engineering Conference Workshops - Beijing, China Duration: 12 Sept 2016 → 16 Sept 2016

Workshop

Workshop	2016 IEEE 24th International Requirements Engineering Conference Workshops
Abbreviated title	REW 2016
Country/Territory	China
City	Beijing
Period	12/09/16 → 16/09/16

Bibliographical 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

Access to Document

10.1109/REW.2016.020

The Reassessment of Preferences of Non-functional Requirements
© 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, 503 KB

Cite this

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

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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Garcia Paucar, LH & Bencomo, N 2016, The Reassessment of Preferences of Non-Functional Requirements for Better Informed Decision-making in Self-Adaptation. in Proceedings - 2016 IEEE 24th International Requirements Engineering Conference Workshops. IEEE, Piscataway, NJ (US), pp. 32-38, 2016 IEEE 24th International Requirements Engineering Conference Workshops, Beijing, China, 12/09/16. https://doi.org/10.1109/REW.2016.020

The Reassessment of Preferences of Non-Functional Requirements for Better Informed Decision-making in Self-Adaptation. / Garcia Paucar, Luis H.; Bencomo, Nelly.
Proceedings - 2016 IEEE 24th International Requirements Engineering Conference Workshops. Piscataway, NJ (US): IEEE, 2016. p. 32-38.

Research output: Chapter in Book/Published conference output › Conference publication

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

Abstract

Workshop

Bibliographical note

Keywords

Access to Document

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