# Add Aggregate Invariant

> A technique for enforcing a rule across related entities inside the aggregate that owns them.

Record: `lexicon:add-aggregate-invariant`
Kind: technique
Layer: [Domain Modeling](https://banes-lab.com/records/layer/domain-modeling.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-add-aggregate-invariant

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Split Repository](https://banes-lab.com/records/lexicon/split-repository.md) and before [Split Bounded Context](https://banes-lab.com/records/lexicon/split-bounded-context.md).

## Category

- [Domain Architecture](https://banes-lab.com/records/lexicon-category/domain-architecture.md)

## Refactors

- [Anemic Domain Model](https://banes-lab.com/records/architecture/anemic-domain-model.md)
- [Aggregate](https://banes-lab.com/records/architecture/aggregate.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)
- [Domain Architecture](https://banes-lab.com/ontology/principles/architecture-category-domain-architecture.md)