Data Clumps

Kind: anti-pattern

Layer: Enforcement Core

Record: architecture:data-clumps

Severity: discouraged

Scope: contract_compatibility

Formed by: Pass the same group of fields together repeatedly without naming the group as a value object or contract.

Canonical: Ontology

A defect in which the same group of values travels together without being named as one type.

Listed in Architecture principles, after Middle Man and before Primitive Obsession.

Refactored by

• Value Object
• Introduce Boundary DTO
• Name the Concept
• Validate as a Group

Severity

• discouraged

Category

• Anti-patterns

Force

• Contract compatibility

Linked from

• Anti-patterns
• Domain Architecture
• Contracts / Interfaces / Compatibility
• Core Vocabulary
• Correctness / Determinism / Verification
• Severity levels
• The forces