In which cases is it advisable to apply the microservices architecture approach?

Microservice architecture is appropriate when:

• The system is large and complex, requiring division into independent parts to simplify development and maintenance.
• Scalability of individual components is needed, rather than the entire application.
• Independent deployment and updating of services are required without stopping the entire system.
• There are multiple teams, each responsible for their own service, which increases autonomy and development speed.
• Different technologies or programming languages need to be used for different parts of the system.

For example, in an online store, separate microservices can be allocated for the product catalog, cart, payment, and delivery, which allows each to be developed and scaled independently.