Software architecture refers to the planning and design of the overall structure and organization of the system components, modules, and the relationship between them when designing and building a software system. Common software architectures include the following:

1. Single-LayerArchitecture:

All components are deployed in a hierarchical structure, usually used for small applications, simple and straightforward.

2. Client-ServerArchitecture:

The system is divided into two separate parts, the client is responsible for the user interface and a part of the business logic, while the server is responsible for handling the data storage and another part of the business logic. part of the business logic.

3. Layered Architecture:

The system is divided into layers, each of which is responsible for a specific function. Common layering includes representation layer (PresentationLayer), business logic layer (BusinessLogicLayer), data access layer (DataAccessLayer).

4. MicroservicesArchitecture:

The system is split into small independent services, each of which is an independent application that can be developed, deployed, and extended independently. This helps improve the maintainability and scalability of the system.

5. Event-Driven Architecture:

Communication between components in the system is through events, and a change in the state of one component can trigger the actions of other components. This architecture is suitable for systems that require real-time response and loose coupling.

6. Service-Oriented Architecture (SOA):

Functions in a system are designed as reusable services that communicate through service interfaces. This architecture helps in achieving modularity and flexibility in the system.

Current software development architectures are usually chosen based on specific project requirements and technology selection, and may be a single architecture or a combination of multiple architectures. For example, some enterprise applications may use a layered architecture, while large-scale Internet applications may use a microservices architecture.

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