Can you explain the concept of Domain-Driven Design and its main principles?

Domain-Driven Design (DDD) is an approach to software development that focuses on a deep understanding of the subject area and close collaboration with domain experts.

Core principles of DDD:

• Focus on the domain: Development revolves around business logic and rules of the subject area.
• Ubiquitous Language: All project participants use a common language understandable to both developers and business experts.
• Modeling the domain: Creating models that reflect real processes and entities.
• Bounded Contexts: Large systems are divided into separate parts with clearly defined boundaries and their own models.
• Entities and Value Objects: The model highlights objects with identity (entities) and objects without identity (values).
• Aggregates: Groups of related objects that are processed as a single unit to ensure data integrity.
• Repositories: Abstractions for data access that hide storage details.

Applying DDD helps create flexible, understandable, and easily maintainable systems that accurately reflect business requirements.