Micro-service is a software development technology, which advocates dividing a single application into a group of small services, which coordinates and cooperates with each other to provide ultimate value for users. The micro-service （ ）has many important benefits. First, it solves the problem of business complexity. It decomposes the original huge single application into a group of services. Although the total amount of functions remains the same, the application has been decomposed into manageable services. The development speed of a single service is much faster, and it is easier to understand and（ ）. Second, this architecture allows each service to be（ ）independently by a team. Developers are free to choose any appropriate technology. Third, the micro-service architecture mode enables each service to be（ ）independently. Developers never need to coordinate the deployment of local changes to their services. These types of changes can be deployed immediately after testing. Finally, the micro-service architecture enables each service to（ ）independently.
