This book is part of the Decision Architecture series, which explores how decision making, authority, and structure interact to determine how systems behave over time.
Most organisational change fails because the system does not permit effective action.
This book introduces the concept of the move space: the set of actions that are structurally possible within a system and its decision making environment.
The problem is not choosing better actions.
The problem is understanding which actions are structurally valid.
In any organisation, there exists a constrained set of possible actions.
Some improve the system.
Some degrade it.
Many appear effective but change nothing.
You cannot optimise inside a broken move space.
This is not a framework.
It does not prescribe best practices.
Instead, it provides a positional model for organisational systems and decision making:
Structure defines what is possible Signals reveal how the system behaves Moves define the set of valid interventionsAcross domains such as decision authority, coordination, incentives, and information flow, this book maps:
terrible moves that embed failure bad moves that degrade the system neutral moves that change nothing good moves that improve structure great moves that remove entire classes of problemsMost organisations manage outcomes while preserving the constraints that produce them.
This is a system for reasoning, not imitation.
It is written for:
engineers and technical leaders system architects and CTOs anyone working with complex systems, strategy, or organisational decision makingThe Decision Architecture Series:
Book 1) Decision Architecture
Book 2) Decision Architecture Patterns
Book 3) Decision Architecture: The Move Space
Book 4) Relativistic Decision Architecture