Microservices is a service-oriented architecture pattern wherein applications are built as a collection of various smallest independent service units. It is a software engineering approach that focuses on decomposing an application into single-function modules with well-defined interfaces. These modules can be independently deployed and operated by small teams that own the entire lifecycle of the service.
The term “micro” refers to the sizing of a microservice which must be manageable by a single development team ( 5 to 10 developers). In this methodology, big applications are divided into smallest independent units.
Monolithic architecture refers to a single unit. The different components of a monolithic application are combined into a single-tier software application. Usually, a monolithic application consists of a database, server-side, and client-side application. All the application’s parts are unified and all its functions are managed in one place.