# Read Each Period

> A technique for checking, for each copy, whether the edge that produced it runs again or ran once against an earlier state.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Count Distinguished Copies](https://banes-lab.com/records/lexicon/count-distinguished-copies.md) and before [Repair the Source](https://banes-lab.com/records/lexicon/repair-the-source.md).

## Category

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

## Refactors

- [Period-Decided Disposition](https://banes-lab.com/records/architecture/period-decided-disposition.md)

## Linked from

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