# Data Dependencies

> The requirement that the data each stage needs from others be declared as explicit dependencies.

Record: `lexicon:data-dependencies`
Kind: constraint
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-data-dependencies

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Control-Flow-Centric Monolith](https://banes-lab.com/records/lexicon/control-flow-centric-monolith.md) and before [Parallel/Stream Processing](https://banes-lab.com/records/lexicon/parallel-stream-processing.md).

## Category

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

## Required by

- [Dataflow Architecture](https://banes-lab.com/records/architecture/dataflow-architecture.md)

## Linked from

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