Whether you have software testing experience or planning to start your training, you probably know software testing is categorized into functional and non-functional testing. Understanding the differences between the two can make all the difference when it comes to software performance and quality.
So, let’s discuss the differences between functional and non-functional testing below.
First, let’s understand what functional testing entails. During functional testing, testers conduct various tests to determine if the software meets its intended functional specifications and requirements. To do this, testers validate each software function by providing the target input and checking the output to determine if the software serves the intended functional specification. Some critical elements checked during functional testing include:
Please bear in mind that functional testing can either be manual or automatic. Moreover, this testing type focuses on the black box testing instead of the source code. Thus, it focuses on basic usability, accessibility, mainline functions, and error conditions.
You should test each aspect during functional testing. Discover how to do functional testing like a pro below:
Now that you know everything about functional testing let’s discuss non-functional testing. Unlike functional testing, non-functional testing focuses on non-functional aspects. This testing type strives to identify the readiness of the application based on non-functional parameters like:
Non-functional software testing seeks to improve the software’s security, usability, portability, reliability, and efficiency. It also prevents unnecessary costs and risks associated with non-functional parameters. What’s more, this testing type also facilitates internal research by providing crucial data and metrics.
You now know the what and why of each testing type. So, let’s highlight the key differences between non-functional testing and functional testing below:
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