Domain Model

Kind: artifact

Layer: Domain Modeling

Record: architecture:domain-model

Severity: contextual

Scope: domain, bounded context

Canonical: Ontology

A formal definition of the business concepts, rules and invariants of one context, written as types with behavior.

Listed in Architecture principles, after Domain-Driven Design (DDD) and before Bounded Context.

Requires

• Ubiquitous Language
• Invariant

Reinforces

• Correctness
• Semantic Contracts

Enables

• Business Rule Encapsulation

Conflicts with

• Anemic Domain Model

In tension with

• Persistence Simplicity

Tensions

• Domain Model / Persistence Simplicity

Violated by

• Anemic Domain Model

Refactored by

• Move Logic to the Domain
• Value Object
• Aggregate

Severity

• contextual

Category

• Domain Architecture

Reinforced by

• Domain-Driven Design
• Entity

Required by

• Domain Service
• Domain Events

Linked from

• Anti-patterns
• Domain Architecture
• Contracts / Interfaces / Compatibility
• Correctness / Determinism / Verification
• Event / Messaging / Asynchronous Architecture
• Schema / Canonical Data / Semantics
• Domain Architecture
• Severity levels
• The resolutions