# Parallel Environments

> The requirement that two full production-equivalent environments run side by side for cutover.

Record: `lex:parallel-environments`
Kind: constraint
Layer: [Correctness Core](https://banes-lab.com/records/layer/correctness-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-parallel-environments

## category

- [Self-Healing / Recovery / Deployment Safety](https://banes-lab.com/records/lex-category/self-healing-recovery-deployment-safety.md)

## referenced-by

- [Blue-Green Deployment](https://banes-lab.com/records/arch/blue-green-deployment.md)