Microservices are small form of action ('Micro' means tiny/small and 'Services' means actions) which can get your work done. Microservice is an architectural style that structures an application as a collection of services that are:

Decentralized Governance

Highly maintainable and and easily testable

Organized around business capabilities

Loosely coupled

Fault isolation

Independently deployable

Owned by a small team

Essential messaging frameworks

Infrastructure automation

Easy Infrastructure automation

In which cases microservice architecture best suited?

Microservice architecture is best suited for desktop, web, mobile devices, Smart TVs, Wearable, etc. Below are the use cases for microservices:

Real time data processing applications. The most common use cases are streaming platforms like YouTube or SoundCloud, e-banking applications, radar systems, traffic control systems, online booking etc. i.e. the applications, executing operations in real time to deliver an immediate output

Large-scale systems with complex logic. Dramatically growing organizations (e.g. social media, social networks, media) require outstanding flexibility and scalability, that microservices architecture exactly provides. It helps companies quickly find the bottlenecks or invoke new cutting-edge technology to make it possible. Moreover, ability to deploy frequently on service-level enables even faster scalability.

Applications dealing with big data, AL/ML is one of the best use cases for microservices architecture