Feature Envy

Kind: anti-pattern

Layer: Enforcement Core

Record: architecture:feature-envy

Severity: discouraged

Scope: modularity, contract_compatibility

Formed by: Let one module repeatedly inspect or manipulate another module’s data instead of moving behavior to the data owner.

Canonical: Ontology

A defect in which one module mostly works on another module's data instead of its own.

Listed in Architecture principles, after Divergent Change and before Inappropriate Intimacy.

Refactored by

• Move Behavior to Its Owner
• Encapsulate State
• Move Logic to the Domain
• Extract Use Case

Severity

• discouraged

Category

• Anti-patterns

Force

• Contract compatibility
• Modularity

Negated by

• Encapsulation

Linked from

• Anti-patterns
• Core Modular Design
• Core Modular Design
• Domain Architecture
• Severity levels
• The forces