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Software architecture · Web development

Layered web app package diagram

A layered web application package diagram makes the responsibilities of each architectural layer easy to inspect. Routes handle delivery, application services coordinate use cases, domain classes express business concepts, and infrastructure adapters connect to external systems. Dependencies reveal whether a route reaches into data access or whether a service is doing too much. This is a useful design artifact for a small web service because it stays at the module level and can change as the architecture evolves.

Tipo Diagrama de classes UMLNorma OMG UML 2.5.1 §9–§11Mecanismo schematex-umlclassAtualizado 24/09/2026
Layered web app packages
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A solicitação

“Create a layered web app package diagram with routes, application services, domain logic, infrastructure adapters, and dependencies.”

Depois, tenteAdd an authentication package.Change EmailAdapter to QueueAdapter.
O que há neste desenho

Entenda as decisões por trás dele.

01Keep routes thin

Route packages invoke application services.

02Protect domain logic

Business objects remain independent of delivery details.

03Contain adapters

Persistence and email sit in infrastructure.

04Show direction

Dependencies should point inward where possible.

Use to review module boundaries and communication paths in a web application.

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Perguntas frequentes

Dúvidas comuns

What is a layered package diagram?

It groups a system by architectural layer and shows how one layer depends on another.

Where do repositories belong?

They are usually infrastructure concerns, even when an interface is referenced by application or domain code.

How detailed should it be?

Show important boundaries and dependencies, not every implementation class.