Guy Wilcox

What is the Difference Between QA and UAT?

Software Development, Quality Assurance
What is the Difference Between QA and UAT?

Quality assurance (QA) testing and user acceptance testing (UAT) are both essential components of software testing, whether that's for a web app, custom software development, or any other type of product.

The two types of tests each have different purposes for ensuring products are completed to specification. So, read on to discover why any software development company should incorporate both into their software development services.


What is QA in Software and Web Development?

QA focuses on detecting defects and issues related to the functionality and integration of the system. It is performed by testers and includes both positive and negative test cases, happy and unhappy paths, and inbound and outbound values. The main goal of QA is to ensure that the app or product is not “buggy” and that the features are functioning as per the requirements.

What is UAT in Software and Web App Development?

UAT is conducted to evaluate the system's compliance with its specified set of customer requirements, ensuring the user experience and product usability is as planned. It is performed by end-users and clients (the clue is in the name) in collaboration with software or web app developers, as they effectively perform the user journeys (“a day in the life of”).

UAT contains more positive test cases and focuses on detecting defects and issues according to end-user requirements, providing an end-user vision, and increasing happiness.

In addition, it keeps ongoing maintenance costs low as it's faster and cheaper to fix usability issues early on. Overall, UAT is a vital activity that any generic or custom software development company should include in their repertoire.

Why You Need Both Types of Testing in Your Software Development Process

Not doing QA can have major consequences, such as excessive expenses, delayed product launches, dissatisfied users, poor brand reputation, and a poor experience of UAT when users interact with the application for potentially the first time.

If software bugs prevent users from having a positive user experience, they will likely leave, perhaps never to return.

Therefore, it's essential to test software products with an experienced test team to ensure user satisfaction and reduce the risk of reputation damage.

QA and UAT testing are equally essential in ensuring that software is of good quality and meets the customers' requirements. To summarize:

  • QA ensures that the software has as few bugs as possible.  

  • UAT ensures that the product meets customer requirements and provides a good user experience and overall usability.

In Closing

By performing both types of testing, software development teams can ensure that the end product satisfies both the client and the target users, minimizing the risk of negative feedback and improving brand reputation.

To discover how our digital consultants can elevate your software development services, contact us today.