# Operational Dependency

> The degree to which a system's operation depends on a message broker remaining available.

Record: `lexicon:operational-dependency`
Kind: quality-attribute
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-operational-dependency

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Immediate Consistency](https://banes-lab.com/records/lexicon/immediate-consistency.md) and before [Query Complexity](https://banes-lab.com/records/lexicon/query-complexity.md).

## Category

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

## In tension with

- [Message Broker](https://banes-lab.com/records/architecture/message-broker.md)
- [Message Broker / Operational Dependency](https://banes-lab.com/records/tension/message-broker-operational-dependency.md)

## Linked from

- [Event / Messaging / Asynchronous Architecture](https://banes-lab.com/ontology/principles/architecture-category-event-messaging-asynchronous-architecture.md)
- [The resolutions](https://banes-lab.com/ontology/schema/the-resolutions.md)