# Ordered Role Sequence

> A rule or precondition that each folder depth consume a role strictly later than the depth before it, so container, subject and concern may be skipped but never repeated and never revisited.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Depth Cap](https://banes-lab.com/records/lexicon/depth-cap.md) and before [Layer Spine](https://banes-lab.com/records/lexicon/layer-spine.md).

## Category

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

## Required by

- [Positional Slot Resolution](https://banes-lab.com/records/architecture/positional-slot-resolution.md)
- [Bounded Nesting Depth](https://banes-lab.com/records/architecture/bounded-nesting-depth.md)

## Linked from

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