Domain-Driven Design

DDD

Kind: style

Layer: Domain Modeling

Aliases: DDD

Record: architecture:domain-driven-design

Severity: contextual

Scope: domain, bounded context, system

Canonical: Ontology

A convention of modeling software on the business domain's own language, split into bounded contexts with a domain model in each.

Listed in Architecture principles, after Model Version Ambiguity and before Domain Model.

Requires

• Ubiquitous Language
• Bounded Context

Reinforces

• Domain Model
• Semantic Consistency

Enables

• Domain Alignment

Conflicts with

• Anemic Transaction Script

In tension with

• Simple CRUD

Tensions

• Domain-Driven Design (DDD) / Simple CRUD

Violated by

• Anemic Domain Model
• Fat Controller

Refactored by

• Extract Domain Model
• Aggregate
• Split Bounded Context

Severity

• contextual

Category

• Domain Architecture

Reinforced by

• Domain Events

Linked from

• Domain Architecture
• Event / Messaging / Asynchronous Architecture
• Schema / Canonical Data / Semantics
• Domain Architecture
• Severity levels
• The resolutions