# Explicit Interfaces

> The requirement that a module interact only through declared interfaces, not its hidden internals.

Record: `lex:explicit-interfaces`
Kind: constraint
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-explicit-interfaces

## category

- [Core Modular Design](https://banes-lab.com/records/lex-category/core-modular-design.md)

## referenced-by

- [Information Hiding](https://banes-lab.com/records/arch/information-hiding.md)