New Framework Unites System Structure and Behavior Through Interaction

A new framework for understanding systems challenges how researchers traditionally think about the relationship between what a system looks like and how it acts.

The Problem with Current Definitions#

For decades, General Systems Theory has defined systems through various lenses—focusing on their elements, the links between them, their boundaries, their functions, or their interactions. Yet these approaches have left a gap: they fail to fully explain how the internal arrangement of a system and the way it behaves are fundamentally connected to one another. Most existing theories treat structure and behavior as separate properties rather than aspects of something unified.

Structure-Behavior Coalescence (SBC)#

The paper introduces Structure-Behavior Coalescence as an alternative foundation. Under this view, a system is more than just a collection of parts or relationships. Instead, it's a structured whole where behavior emerges through interactions among its components—and those same interactions simultaneously shape and reveal the system's structure. This creates a feedback loop: structural organization drives behavioral patterns, while behavioral patterns make the underlying structure visible and concrete.

How It Works#

The framework distinguishes three elements—structure, interaction, and behavior—while treating them as inseparable pieces of the same picture. Interactions serve as the critical bridge: they transform abstract structural relationships into observable processes, and they allow behavioral processes to both demonstrate and reinforce how the system is organized. This makes it possible to represent systems in a way that keeps what they are aligned with what they do.

Broader Implications#

The research addresses key questions for systems theory, including how to define system identity, where boundaries should be drawn, how behavior emerges from complexity, and how to model intricate systems in a coherent way. By placing the interplay between structure and behavior at the core of systems theory, the work offers a conceptual foundation that builds on and complements existing approaches to understanding complex wholes.

View the full paper on arXiv.