In what cases is microservice architecture appropriate?

Microservice architecture is appropriate in the following cases:

• When the project is large and complex, and it is convenient to break it into independent parts for easier development and maintenance.
• If the development team is distributed and works on different functional modules.
• When high scalability of individual components is required, rather than the entire application.
• If quick implementation of changes and updates to individual parts are needed without stopping the entire service.
• To ensure resilience: a failure of one microservice should not affect the entire system.
• When there is a need to use different technologies and programming languages for different components.

However, microservices add complexity to infrastructure, communication, and monitoring, so they should be used when the benefits outweigh these costs.