Microservices Architecture is a design approach where an application is composed of small, loosely coupled, and independently deployable services. Each service is focused on a specific business capability and can be developed, deployed, and scaled independently.
Test-Driven Development, or TDD, is a software development approach that emphasizes writing tests before writing the actual implementation code. The TDD process typically follows three steps: Red, Green, and Refactor.
DDD stands for Domain-Driven Design, which is an approach to software development that focuses on modeling complex business domains and aligning the software design with the domain. It was introduced by Eric Evans in his book “Domain-Driven Design: Tackling Complexity in the Heart of Software.”