# Layer Spine

> A conceptual representation of the system-decomposition spectrum that totally orders every concern from domain through product and supplies the tie-break direction.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Ordered Role Sequence](https://banes-lab.com/records/lexicon/ordered-role-sequence.md) and before [Collection Concern](https://banes-lab.com/records/lexicon/collection-concern.md).

## Category

- [Taxonomy / Classification / Naming](https://banes-lab.com/records/lexicon-category/taxonomy-classification-naming.md)

## Required by

- [Layer Spine Precedence](https://banes-lab.com/records/architecture/layer-spine-precedence.md)

## Linked from

- [Taxonomy / Classification / Naming](https://banes-lab.com/ontology/principles/architecture-category-taxonomy-classification-naming.md)