# Layer Separation

> The requirement that responsibilities be divided into distinct, ordered layers.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Domain Core](https://banes-lab.com/records/lexicon/domain-core.md) and before [Ports](https://banes-lab.com/records/lexicon/ports.md).

## Category

- [Codebase / System Architecture Styles](https://banes-lab.com/records/lexicon-category/codebase-system-architecture-styles.md)

## Required by

- [Layered Architecture](https://banes-lab.com/records/architecture/layered-architecture.md)

## Linked from

- [Codebase / System Architecture Styles](https://banes-lab.com/ontology/principles/architecture-category-codebase-system-architecture-styles.md)