# Shared Database

> Multiple services reading and writing one shared database, coupling them and destroying service autonomy.

Record: `lexicon:shared-database`
Kind: anti-pattern
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-shared-database

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Point-to-Point Coupling](https://banes-lab.com/records/lexicon/point-to-point-coupling.md) and before [Single Serial Consumer](https://banes-lab.com/records/lexicon/single-serial-consumer.md).

## Category

- [Event Messaging Async](https://banes-lab.com/records/lexicon-category/event-messaging-async.md)

## Negated by

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