# Shared Behavioral Interface

> The requirement that the real object and its null stand-in implement one common interface.

Record: `lexicon:shared-behavioral-interface`
Kind: constraint
Layer: [Design Patterns Core](https://banes-lab.com/records/layer/design-patterns-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-shared-behavioral-interface

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Interchangeable Algorithms](https://banes-lab.com/records/lexicon/interchangeable-algorithms.md) and before [Stable Algorithm Skeleton](https://banes-lab.com/records/lexicon/stable-algorithm-skeleton.md).

## Category

- [Behavioral Patterns](https://banes-lab.com/records/lexicon-category/behavioral-patterns.md)

## Required by

- [Null Object Pattern](https://banes-lab.com/records/architecture/null-object-pattern.md)

## Linked from

- [Behavioral Patterns](https://banes-lab.com/ontology/principles/architecture-category-behavioral-patterns.md)