Classic Layers

← Back to Layered Architecture

Presentation → Business Logic → Data Access → Database. The traditional layered architecture where each layer depends only on the layer directly below it. Simple and widely understood, but can lead to tight coupling to the database layer.

Key Properties

• Layer Responsibility
• Dependency Direction
• Layer Isolation

Related

• Clean Architecture (inverts dependency direction)
• Separation of Concerns (each layer handles one concern)

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architecture layered classic