Architectural Design and patterns

Question 1

Why is software architecture important?

Answer 1

Provides a high-level structure of the system, guides design decisions, improves communication, affects system qualities (performance, maintainability, scalability)

Question 2

What are architectural patterns?

Answer 2

Reusable solutions for common design problems. Examples:
* Layered,
* Client-server,
* MVC,
* Pipe-and-filter,
* Microservices.

Question 3

Describe the Layered architecture pattern.

Answer 3

System divided into layers (presentation, business logic, data). Each layer only communicates with the one below. Good for maintainability.

Question 4

Describe the MVC pattern.

Answer 4

Separates Model (data), View (UI), Controller (logic). Improves separation of concerns and maintainability.