What is DDD and how widely is it used in development?

DDD (Domain-Driven Design) is an approach to software development that focuses on a deep understanding of the subject area (domain) and building a model that reflects business logic.

Main ideas of DDD:

• Emphasis on collaboration with domain experts.
• Dividing the system into contexts (Bounded Contexts) with clear boundaries.
• Using models that reflect real business processes.
• Implementing patterns such as aggregates, entities, value objects, repositories.

In development, DDD is used to create flexible and maintainable systems, especially in complex business applications. In Python, DDD is applied but often in a simplified form, as the language does not impose strict structures. Nevertheless, DDD principles help organize code and business logic more clearly and scalably.