Complexity Definitions Guidance in Systems Engineering

Abstract

This article provides a brief guide addressing the inconsistent use of “complexity” and related terms across different disciplines and situations. Definition variability often leads to miscommunication, even within organizations like the International Council on Systems Engineering (INCOSE). This guide offers practical advice tailored for different audiences on how to effectively use and interpret “complexity” in transdisciplinary contexts. Rather than prescribing a single definition, it promotes a common understanding by illustrating definitional differences and providing techniques to clarify usage. This approach aims to enhance communication, and lay groundwork for a unified scientific basis for “complexity” within systems engineering.