Is Microservices architecture the future of software development?

What do Netflix, Amazon and Twitter have in common (besides the obvious)?
Each has had great success maintaining their profitability and industry leadership using Microservices to build distributed applications that are flexible, agile and scalable.
Microservice architecture is a method of development software applications as a suite of independently deployable, small, modular services in which each service runs a unique process and communicates through a well-defined, lightweight mechanism to serve a business goal.

Here are 5 reasons to consider migrating to Microservices architecture:

1.  Your developers will be more productive and agile
The size and complexity of a microservice is very small compared to a huge, monolithic legacy application. A microservice has a bounded context and is loosely coupled to other services. In addition, decomposing what used to be a monolithic application into a collection of small processes/functions drastically reduces code complexity and enhances programming productivity. This also makes it easier to scale development with multiple teams where each team owns an independent portion of the application which can run as a service on its own. The only key  piece they need to know is how to interact with other services. Most significantly, as the size and risk of change reduces, the rate of change increases which enables greater agility and faster time-to-market.
2.  Deployment Flexibility
Services can be implemented with different languages, database, and hardware. Instead of deploying a whole application on a high performance computing hardware type, Microservices can be deployed to different hardware configuration servers to maximize computing power. Microservices is a key enabler for DevOps continuous delivery core principle.
3.  Ease of scalability
Microservice architecture allows scalability independence, so that only the services that need to scale do it independently from the other Microservices, saving a lot of computing resources. For example, if there is more traffic to a search service compared to an authentication service, just the search service scales. Due to their size, deployment flexibility and bounded context, Microservices are easier to scale and faster to instantiate than large, monolithic applications.
4.  Pinpoint and fix Issues in a snap
Enhancements and fixes can be isolated to just the service that requires the modification, thus reducing regression risk. Decomposing and deploying the applications into smaller services reduces the time to identify and fix failures.  This allows fault isolation, as well as the reduction of the attack surface area due to any security vulnerabilities that may exist in the code.
5.  Technology Stack Independence
Loosely coupled Microservices also removes many technology stack constraints enabling developers to be able to choose the programming language that they are most comfortable with and that’s most appropriate for the service. This makes it easy to replace the service when better technologies become available.

Stay tuned for more web architecture resources from Menlo Technologies as we explore more examples and discuss API management and inter-process communication for a Microservices Architecture.