# Derive Liveness Once

> A technique for computing liveness in one place that every consumer reads.

Record: `lexicon:derive-liveness-once`
Kind: technique
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-derive-liveness-once

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Join by Reading the Published Result](https://banes-lab.com/records/lexicon/join-by-reading-the-published-result.md) and before [Witness First](https://banes-lab.com/records/lexicon/witness-first.md).

## Category

- [Coordination Surfaces](https://banes-lab.com/records/lexicon-category/coordination-surfaces.md)

## Refactors

- [One-Sided Liveness](https://banes-lab.com/records/architecture/one-sided-liveness.md)

## Linked from

- [Coordination Surfaces](https://banes-lab.com/ontology/principles/architecture-category-coordination-surfaces.md)