Câu hỏi phỏng vấn [Global] DDD
Câu hỏi

How would you describe what is Domain Driven Design from the developer point of view?

Câu trả lời

Domain-Driven Design (DDD) is a software development approach that emphasizes the importance of understanding and modeling the business domain in which the software operates. From a developer's point of view, DDD can be described as follows:

Core Concepts

  1. Domain: The domain refers to the specific area of knowledge or activity that the software is intended to address. It encompasses the real-world concepts, rules, and processes that the software models or supports.

  2. Ubiquitous Language: This is a common language shared by developers and domain experts. It ensures that everyone involved in the project uses the same terminology, reducing misunderstandings and improving communication.

  3. Bounded Contexts: These are logical boundaries within which a particular domain model is defined and applicable. Each bounded context has its own ubiquitous language and domain model, allowing for clear separation and management of different parts of the system.

  4. Entities and Value Objects: Entities are objects with a distinct identity that persists over time, while value objects are immutable and defined by their attributes rather than identity.

  5. Aggregates and Aggregate Roots: Aggregates are clusters of related entities and value objects that are treated as a single unit. The aggregate root is the primary entity that ensures the consistency and integrity of the aggregate.

  6. Domain Events: These are events that represent something significant that has happened within the domain. They are used to communicate changes and trigger actions within the system.


  1. Improved Communication: By using a ubiquitous language, developers and domain experts can communicate more effectively, ensuring that the software accurately reflects the business needs.

  2. Focus on Core Domain: DDD helps identify and prioritize the core domain, which is central to the business's operations. This focus ensures that the most critical aspects of the system receive the most attention.

  3. Resilience to Change: DDD promotes designing software that can adapt to changes in the business domain, making the system more flexible and maintainable.

  4. Clear Separation of Concerns: By isolating domain logic from technical details, DDD helps maintain a clean and focused domain model, which is easier to understand and modify.


  1. Complexity: DDD requires a deep understanding o...


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