How is the development of software system architecture carried out?

Development of software system architecture is the process of designing the application's structure, which includes selecting components, their interactions, and technologies. The main stages:

1. Requirements analysis: understanding functional and non-functional requirements.
2. Defining the main components and modules of the system.
3. Choosing an architectural style (monolith, microservices, client-server, etc.).
4. Designing interfaces between components.
5. Selecting technologies and tools for implementation.
6. Documenting the architecture (e.g., using UML diagrams).

In Python development, it is important to consider:

• Organizing code into modules and packages.
• Using design patterns (e.g., MVC, factory).
• Ensuring testability and extensibility.

Example: for a web application, you can choose a layered architecture — presentation (Flask/Django), business logic, and data access (ORM).

A good architecture facilitates maintenance, scaling, and system development.