What are the differences between DDD and CQRS?

What are the differences between DDD and CQRS?

DDD, or Domain-Driven Design, focuses on modeling complex software based on the business domain, while CQRS, or Command Query Responsibility Segregation, separates read and write operations to optimize performance.

Can you explain how they complement each other?

Certainly! DDD helps in defining the domain model, which can be effectively implemented using CQRS to handle commands and queries separately, enhancing scalability and maintainability.

Are there any drawbacks to using CQRS with DDD?

Yes, while CQRS can improve performance, it also adds complexity to the system. It requires careful design and can lead to challenges in data consistency.

In what scenarios would you recommend using both?

Using both is ideal in complex applications with distinct read and write requirements, especially when scalability and clear domain modeling are priorities.