How did you structure and divide microservices in your previous project or company?

In my previous project, microservices were divided by business domains so that each service was responsible for a specific business logic or functional area. For example, there was a user management service, an order processing service, and a payment service. This approach helps isolate responsibilities, simplify maintenance, and scale.

Data independence was also considered: each microservice had its own database to avoid tight coupling through shared tables. Communication between services was via API or messaging (e.g., queues).

The key principle was to adhere to single responsibility and minimize coupling between services so that changes in one service do not affect others.