Managing non‐functional requirements in agile software development

Rahy, S ORCID: and Bass, J ORCID: 2022, 'Managing non‐functional requirements in agile software development' , IET Software, 16 (1) , pp. 60-72.

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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.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: IET Software
Publisher: Wiley/Institute of Engineering and Technology
ISSN: 1751-8814
Related URLs:
Depositing User: Scarlet Rahy
Date Deposited: 11 Aug 2021 07:54
Last Modified: 15 Feb 2022 16:33

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