# No Hidden State

> The requirement that a processor keep no state between invocations, so each call starts afresh from what it is given.

Record: `lexicon:no-hidden-state`
Kind: constraint
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-no-hidden-state

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [State Coordination](https://banes-lab.com/records/lexicon/state-coordination.md) and before [Parallel Processing](https://banes-lab.com/records/lexicon/parallel-processing.md).

## Category

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/records/lexicon-category/streaming-pipeline-dataflow-processing.md)

## Required by

- [Stateless Processing](https://banes-lab.com/records/architecture/stateless-processing.md)

## Linked from

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/ontology/principles/architecture-category-streaming-pipeline-dataflow-processing.md)
- [Core Vocabulary](https://banes-lab.com/ontology/lexicon/lexicon-category-core-vocabulary.md)