# Define Module Boundaries

> A technique for declaring which module owns each piece of code and which entry points other modules may use.

Record: `lexicon:define-module-boundaries`
Kind: technique
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-define-module-boundaries

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Split Abstraction](https://banes-lab.com/records/lexicon/split-abstraction.md) and before [Broken Inheritance](https://banes-lab.com/records/lexicon/broken-inheritance.md).

## Category

- [Core Modular Design](https://banes-lab.com/records/lexicon-category/core-modular-design.md)

## Refactors

- [Big Ball of Mud](https://banes-lab.com/records/architecture/big-ball-of-mud.md)
- [Separation of Concerns](https://banes-lab.com/records/architecture/separation-of-concerns.md)
- [Modularity](https://banes-lab.com/records/architecture/modularity.md)
- [Greenfield Development](https://banes-lab.com/records/architecture/greenfield-development.md)
- [Monolith Architecture](https://banes-lab.com/records/architecture/monolith-architecture.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)
- [Core Modular Design](https://banes-lab.com/ontology/principles/architecture-category-core-modular-design.md)
- [Architecture Review / Evolution / Governance Artifacts](https://banes-lab.com/ontology/principles/architecture-category-architecture-review-evolution-governance-artifacts.md)
- [Codebase / System Architecture Styles](https://banes-lab.com/ontology/principles/architecture-category-codebase-system-architecture-styles.md)