In software development, microservices refer to the architectural style where the application is comprised of loosely coupled services that make it easier for developers to build and scale applications. As compared to the traditional monolithic architecture, where the application was treated as a single unit, microservices architecture provides an upper hand in the development process. From my experience, I came across multiple reasons why you should use microservices architecture.

Why should you use microservices?

Scalability

Scalability is one of the prime benefits of microservices. Because each service is built as a separate component, developers can scale specific services rather than the whole application. Discrete services make it easier for developers to add new features and functionalities in the form of new microservices. All this without much affecting the existing codebase.

Better data governance

Microservices offer greater accountability while complying with data governance frameworks like GDPR and HIPAA. As compared to monolithic architecture’s holistic approach that could be the breeding grounds for chaos within teams, microservices have a more specific approach that benefits compliance workflows.

Increased resiliency

Unlike monolithic architecture, microservices decouple your entire application into services that act as separate entities. So, there is minimal impact on the overall application in the unlikely event of code failure. While using microservices architecture, even if you take down several systems for maintenance, your end users might not notice it.

Faster time to market

Being a loosely coupled group of services, microservices give you the feasibility to modify the code or a specific feature without rewriting your entire codebase. You can get your app and services to market faster if you develop them in smaller chunks that are independently testable and deployable.

Easier debugging and maintenance

Using a microservices architecture also makes it easier for debugging and maintenance of the application. As the application is built by using smaller modules, those modules are easier to get individually tested as part of the continuous delivery process to deliver error-free applications.

Reusability

Microservices also provide resource optimization. Multiple teams operate on discrete services with microservices, allowing you to deliver more quickly – and pivot more readily when necessary. Your team's code will be more reusable, and development time will be decreased. You won't have to use pricey equipment if you decouple services. Simple x86 machines will suffice. Microservices greatly increase efficiency and decrease production costs while simultaneously reducing downtime.

Continuous delivery

Microservices rely on cross-functional teams to handle the entire life cycle of an application. Developers, operations, and testing teams work simultaneously on a single service, making debugging easy and instant. Using microservices, code is continuously developed, tested, and deployed with reduced turnaround time.

The above reasons clearly showcase the power of microservices architecture over traditional monolithic architecture.

Note: Not only emerging businesses but already established enterprises like Amazon, Etsy, Uber, Netflix have leveraged microservices architecture to scale their businesses.