Approaches for dealing with complex systems
Conference
Asia-Oceania Systems Engineering Conference (AOSEC 2025)
Title
Approaches for dealing with complex systems
Abstract
For years, we have observed an ongoing rise in the complexity of the challenges faced by systems engineers. This presentation begins by clarifying the meaning of complexity in both problem situations and the systems involved. It then draws upon insights from the INCOSE Complex Systems Working Group’s Complexity Primer for Systems Engineers, which brings concepts from complex systems science into the realm of systems engineering. This resource presents effective methods, tools, and techniques for managing complexity. Based on personal experience, the primer has proven to be a valuable teaching tool for introducing complexity concepts to systems engineering students. Additionally, these ideas have helped develop classifiers, which guide early-career systems engineers to shape their approaches and tailor their processes to address various problem scenarios. The presentation concludes with an overview of the latest initiatives being undertaken by the working group and the new product they are currently pursuing.
Key takeaways:
- Complexity is increasing and spans structural, behavioural, and socio-technical dimensions, making systems harder to predict and manage.
- Traditional systems engineering approaches fall short for complex systems, requiring adaptive, multi-method strategies instead of simplification.
- Effective engagement with complexity demands principles like adaptive thinking, collaboration, and pattern-based design. These, along with other methods and approaches, are explored in A Tradecraft Guide for Systems Engineers, INCOSE Complex Systems Working Group.
Authors
Professor Stephen Cook FIEAust CPEng NER, INCOSE Fellow, Senior Principal Systems Engineer, Shoal Group, and President Elect, INCOSE
Date
Tuesday 28 October 2025
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About Shoal
Shoal is complex systems design company. We use Systems Engineering combined with Modelling, Simulation and Analysis to help our clients define, analyse, decide, optimise, and deliver technology-intensive projects in complex environments across Defence, Space, Transport, Energy and Infrastructure.
More: shoalgroup.com
Contact
Matthew Wylie
Chief Engineer, Shoal Group
[email protected]
