# Feature Extension without Modification

> The ability to add new behavior by writing new code rather than editing existing, tested code.

Record: `lex:feature-extension-without-modification`
Kind: capability
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-feature-extension-without-modification

## category

- [SOLID / Object-Oriented Design](https://banes-lab.com/records/lex-category/solid-object-oriented-design.md)

## referenced-by

- [Open/Closed Principle (OCP)](https://banes-lab.com/records/arch/open-closed.md)