# Transformation Rules

> The requirement that explicit rules define how a model maps to generated implementation code.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Handwritten Divergence](https://banes-lab.com/records/lexicon/handwritten-divergence.md) and before [Ad-Hoc Notebook-to-Production](https://banes-lab.com/records/lexicon/ad-hoc-notebook-to-production.md).

## Category

- [Metaprogramming / Language-Oriented Architecture](https://banes-lab.com/records/lexicon-category/metaprogramming-language-oriented-architecture.md)

## Required by

- [Model-Driven Architecture](https://banes-lab.com/records/architecture/model-driven-architecture.md)

## Linked from

- [Metaprogramming / Language-Oriented Architecture](https://banes-lab.com/ontology/principles/architecture-category-metaprogramming-language-oriented-architecture.md)