Functional requirements decomposition in set-based design

doi:10.1017/dsj.2026.10053

Functional requirements decomposition in set-based design

2026-04-17

0

OA

AI

DOI：10.1017/dsj.2026.10053

Original

Original request for help

Save

Abstract

En 中文

Designing systems is typically uncertain and ambiguous at the early stages. Set-based design (SBD) supports alternative exploration and gradual uncertainty reduction during the early lifecycle, making it practical for complex system design. In parallel, functional requirements decomposition helps to advance the design incrementally. However, current literature on SBD lacks formal guidance on how to decompose functional requirements. To bridge this gap, we introduce a four-step method to decompose functional requirements for SBD hierarchically. We systematically define, reason and narrow the sets, breaking down the functional requirements into formal sub-requirements. This method allows parallel abstraction, ensuring the resulting system satisfies the top-level functional requirements.

Keywords:

Requirements decomposition

set-based design

parallel development

functional requirements

uncertainty and ambiguity

Functional requirements decomposition in set-based design

Abstract

Journal

Organization