Microservices Architectures - Non Functional Requirements - Reliability

In this article, we explore the important non functional requirement called Reliability.

What you will learn

  • What Is Reliability?
  • Why is Reliability important?
  • How do you improve Reliability of your system?

Non Functional Requirements and Microservices

This is the part of a series of articles on Non Functional Requirements:

What Is Reliability?

There are two important aspects to application reliability.

  • Whatever data that you present to the system user, how accurate is that data? Are there any bugs in the source of that data?
  • How reliable is the data present in your database? This is crucial, because such data could be provided to other systems, or be used to generate important analytics.

Improving Application Reliability

Let’s look at some of the things you can do to improve reliability of an application.

Write Great Code

When you write readable code, any bugs present in them would stand out.

Write Great Tests

If you have writing good quality unit tests as part of the development process, it helps build robust software. Not only do they help improve the design, they also help find bugs very early. Following a development process such as Test Driven Development (TDD) is highly recommended for reliable applications.

The same logic extends to component-level and API-level testing as well.

Automate The Testing Process

The integration and system tests must have a high degree of automation. When you depend on manual testing, the chance that a bug leaks over to production is very high. Properly configured automation leads to proper testing of builds, and gives clear and immediate feedback on the build status.

Use Continuous Integration

It is highly recommended that the automated tests be run very frequently, in Continuous Integration, as soon as code is committed into the source repository.

Ensure Proper Database Design

Make sure that your database design is top-class. Normalizing your database helps in eliminating bad data at origin.

Do check out our video on this:

image info


In this short article, we talked about the important concept of application reliability. There are two aspects to it - ensuring data shown to users is reliable, and ensuring data in our data stores is accurate. You can improve reliability by writing great code, writing and automating great unit and system tests, having frequent build testing, and ensuring proper database design.

10 Step Reference Courses

Image Image Image Image Image

in28Minutes is creating amazing solutions for you to learn full stack and the cloud - Docker, Kubernetes, AWS, React, Angular etc. Click here for the complete catalogue of 30 Courses.

Related Posts

Spring Boot Tutorials for Beginners

At in28Minutes, we are creating a number of tutorials with videos, articles & courses on Spring Boot for Beginners and Experienced Developers. This resources will help you learn and gain expertise at Spring Boot.

Spring and Spring Boot Video Tutorials for Beginners

At in28Minutes, we are creating a number of tutorials with videos, articles & courses on Spring Boot for Beginners and Experienced Developers. Here's a list of video tutorials and courses for you

Software Design - Separation Of Concerns - with examples

Software architects and programmers love having Seperation of Concerns. What is it? Why is it important? Let's get started.

Object Oriented Software Design - Solid Principles - with examples

Software design is typically complex. Object oriented design takes it to the next level. There are a number of design patterns and other stuff to be aware of. Can we make things simple? What are the goals to aim for when you are doing object oriented design? SOLID Principles is a great starting point for Object Oriented Design.

Software Design - Open Closed Principle - with examples

Open Closed Principle is one of the SOLID Principles. You want your code to be easily extended. How do you achieve it with minimum fuss? Let's get started.

Software Design - What is Dependency Inversion Principle?

Dependency Inversion Principle is one of the important SOLID Principles. Dependency Inversion Principle is implemented by one of the most popular Java frameworks - Spring. What is it all about? How does it help you design good applications?

Introduction to Four Principles Of Simple Design

With agile and extreme programming, the focus is on keeping your design simple. How do you keep your design simple? How do you decide whether your code is good enough?

Software Design - Single Responsibility Principle - with examples

For me, Single Responsibility Principle is the most important design principle. What is Single Responsibility Principle? How do you use it? How does it help with making your software better? Let's get started.

REST API Best Practices - With Design Examples from Java and Spring Web Services

Designing Great REST API is important to have great microservices. How do you design your REST API? What are the best practices?

Designing REST API - What is Code First Approach?

Designing Great REST API is important to have great microservices. Code First approach focuses on generating the contract from code. Is it the best possible approach?