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Managing non‐functional requirements in agile software development

Rahy, S; Bass, J

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Authors

S Rahy



Abstract

Non‐functional requirements define qualities of the software system that ensure effectiveness while embedding any constraints and restrictions on the design. A challenge rises with agile implementation in handling non‐function requirements in regulated environments. Thus, a practitioner's perceptions of agile method tailoring are described in
relation to inter‐team boundaries and non‐functional requirements. The research comprises 18 practitioner interviews from two multinational agile software development companies. Interviews were recorded, transcribed, and analysed using an approach informed by grounded theory and information flow models were used to compare and
contrast interactions of processes. It was discovered that one of the case study companies managed non‐functional requirements as artefacts in their agile methodology, while the other company reverts to conventional plan‐based software development practices of documentation, timeline estimations, and safety critical requirements. This research creates a detailed comparison of these contrasting approaches. The main contribution of this study is a set of proposed recommendations to deal with non‐functional requirements in
a regulated environment using agile techniques. The introduction of two new artefacts, Documentation Work Item and Safety Critical Work Item, is recommended and it is accompanied with an illustrative example, to transform the handling of documentation and safety critical requirements in a more agile way.

Citation

Rahy, S., & Bass, J. (2022). Managing non‐functional requirements in agile software development. IET Software, 16(1), 60-72. https://doi.org/10.1049/sfw2.12037

Journal Article Type Article
Acceptance Date Jul 2, 2021
Online Publication Date Aug 5, 2021
Publication Date Feb 1, 2022
Deposit Date Aug 11, 2021
Publicly Available Date Aug 11, 2021
Journal IET Software
Publisher Institution of Engineering and Technology (IET)
Volume 16
Issue 1
Pages 60-72
DOI https://doi.org/10.1049/sfw2.12037
Publisher URL https://doi.org/10.1049/sfw2.12037
Related Public URLs http://digital-library.theiet.org/content/journals/iet-sen

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