A microservice is a single, self-contained unit that makes up a large application when combined with many others. By splitting an app into small, independently deployable and scalable units, different teams can write and test each part individually using different programming languages. While microservices provide benefits like independent deployment, fault isolation, and granular scaling, they also introduce operational complexity and deploying microservices can be complex.

3. Microservices
A microservice is a single self-contained unit which,
together with many others, makes up a large
application. By splitting your app into small units every
part of it is independently deployable and scalable, can
be written by different teams and in different
programming languages and can be tested individually.

4. Fig. 1

5. Fig. 2

6. Fig. 3

7. 1) Independent Deployment
2) Fault Isolation
3) Granular Scaling
4) Independent Development
5) Mixed Technology Stack

8. Fig. 4

9. 1) Degree of Independence
2) Technology Stack
3) Operational Complexity
4) Code Organization
5) Deploying microservices can be complex

10. Companies using Microservices