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A product line systems engineering process for variability identification and reduction

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journal contribution
posted on 08.02.2019, 09:10 authored by Mole Li, Alan Grigg, Charles DickersonCharles Dickerson, Lin GuanLin Guan, Siyuan JiSiyuan Ji
Software product line engineering has attracted attention in the last two decades due to its promising capabilities to reduce costs and time to market through reuse of requirements and components. In practice, developing system level product lines in a large-scale company is not an easy task as there may be thousands of variants and multiple disciplines involved. The manual reuse of legacy system models at domain engineering to build reusable system libraries and configurations of variants to derive target products can be infeasible. To tackle this challenge, a Product Line Systems Engineering process is proposed. Specifically, the process extends research in the System Orthogonal Variability Model to support hierarchical variability modeling with formal definitions; utilizes Systems Engineering concepts and legacy system models to build the hierarchy for the variability model and to identify essential relations between variants; and finally, analyzes the identified relations to reduce the number of variation points. The process, which is automated by computational algorithms, is demonstrated through an illustrative example on generalized Rolls-Royce aircraft engine control systems. To evaluate the effectiveness of the process in the reduction of variation points, it is further applied to case studies in different engineering domains at different levels of complexity. Subject to system model availability, reduction of 14% to 40% in the number of variation points are demonstrated in the case studies.

Funding

This work was supported in part by the Rolls-Royce Controls and Data Service team.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

IEEE Systems Journal

Volume

13

Issue

4

Pages

3663 - 3674

Citation

LI, M. ... et al, 2019. A product line systems engineering process for variability identification and reduction. IEEE Systems Journal, 13 (4), pp.3663-3674.

Publisher

IEEE

Version

AM (Accepted Manuscript)

Rights holder

© IEEE

Publisher statement

© 2019 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.

Publication date

2019-02-25

Copyright date

2019

ISSN

1932-8184

eISSN

1937-9234

Language

en