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Cruft

Cruft is unnecessary or redundant software code and structure that increases complexity and makes a system harder to change or maintain.

How 2 Manning books explain it

Architecture Modernization: Socio-technical alignment of software, strategy, and structure

Cruft is avoidable software complexity caused by a codebase differing from its ideal structure or implementation without changing its intended functionality.

How it is used
Diagnoses avoidable complexity that raises maintenance costs and slows change, especially in supporting subdomains.
How deep it goes
Defines cruft, identifies structural forms, and relates it to modernization strategy without prescribing detailed refactoring techniques.
Examples
Uses Gran Turismo’s penalty model and the suspect supporting subdomain as examples of complexity assessment.
What you can do after
Evaluate whether complexity is avoidable, prioritize reduction, and choose coordinated modernization or lightweight maintenance.

Read how Architecture Modernization: Socio-technical alignment of software, strategy, and structure explains cruft →

Collaborative Software Design: How to facilitate domain modeling decisions

Poorly written, redundant, or otherwise unnecessary software code and structure that makes a system harder to change or maintain.

How it is used
Frames cruft as a design-and-architecture consequence that motivates explicit decisions and collaborative modeling.
How deep it goes
Distinguishes deliberate technical-debt cruft from unintended cruft caused by implicit design, but does not detail remediation steps.
Examples
Uses blocked functionality, delayed delivery, bugs, and developer hacks as concrete consequences of cruft.
What you can do after
Evaluate cruft by its origins and consequences, then support decisions that make risks and trade-offs visible.

Read how Collaborative Software Design: How to facilitate domain modeling decisions explains cruft →

Related concepts

These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.