# Validation Rules

> Declared constraints that input must satisfy, such as type, range, format and length, before it is accepted.

Record: `lexicon:validation-rules`
Kind: constraint
Layer: [Security Core](https://banes-lab.com/records/layer/security-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-validation-rules

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Strong Identity](https://banes-lab.com/records/lexicon/strong-identity.md) and before [Automated Control](https://banes-lab.com/records/lexicon/automated-control.md).

## Category

- [Security Privacy Compliance](https://banes-lab.com/records/lexicon-category/security-privacy-compliance.md)

## Required by

- [Input Validation](https://banes-lab.com/records/architecture/input-validation.md)

## Linked from

- [Contracts / Interfaces / Compatibility](https://banes-lab.com/ontology/principles/architecture-category-contracts-interfaces-compatibility.md)
- [Security / Privacy / Compliance / Governance](https://banes-lab.com/ontology/principles/architecture-category-security-privacy-compliance-governance.md)