Briefly explained: A microservice is an architectural style for software application development in which an application is divided into small, independent services that communicate with each other. Each microservice is typically responsible for a specific function or small part of the application and can be developed, deployed, and maintained independently of the other microservices. This allows the application to be developed and changed more quickly because each microservice can be viewed in isolation and there are fewer dependencies. It is also easier to scale and maintain microservices because only the affected microservice needs to be redeployed, rather than upgrading the entire application. Microservices are often used in conjunction with container technologies such as Docker to simplify service deployment and maintenance.