Microservices is a type of architectural style that decouples an application into loosely connected services. This makes each component of the application more manageable and easier to work it. Each component can be developed and maintained separately, independent of each other. When required, all of them can be composed together. In contrast to this, is the traditional approach in which the application is developed in one huge piece.
When an application is broken down into modules, organizations can achieve higher agility and deploy improvements in a shorter time. The approach is superior especially when the applications are large, and being developed by a culturally and geographically diverse team.

Reduced Complexity

Mircoservice architecture allows the development team to concentrate on only their specific module and be concerned with complexities involved in only their part. For other modules, they only need to know how the basic facts, and even if they don’t have any idea of internal workings or functions, they can still make sure that their part works perfectly well. When knowledge is shared in this manner and complexity is localized, businesses can create large applications in a much better and more effective way.

Business Functionality

Some applications are often used with every other application or system such as user management and authentication. When these are decoupled, organizations only build them once and then use the already developed ones for supporting as many applications as required. If microservices architecture isn’t adopted, then organizations may be required to build a separate user management system for every application.

Increased Resiliency

If one component of the application fails, others continue to function. Thus, the whole system doesn’t crash down and the affect on user experience is either limited or not felt.

Improved Scaling

Microservices make it easier to identify bottlenecks, which can be resolved if single services are scaled.