Functional vs. Non-Functional Testing
Let’s give a quick look at Functional vs. Non-Functional Testing. We will look at the definitions first.
Functional testing refers to activities that verify a specific action or function of the code. In other words, they are ground for code requirements documentation. Functional tests tend to answer the question such as “can the user do this”.
On the other hand, non-functional testing refers to the software aspects that may not be related to a specific function. For instance- scalability or security. In addition, non-functional testing tends to answer such questions as “how many people can log in at once”.
We will now discuss the key differences in the table given below.
Functional vs. Non-Functional Testing
| Functional Testing | Non-Functional Testing |
| Verifies each function of the software | Verifies non-functional aspects like performance, usability, reliability, etc |
| Manual in nature | Hard to perform manually |
| Invites customer requirements | Invites customer’s expectations |
| Describes product functions | Describes how it functions |
| Validates software actions | Validates performance of the software |
| Performed before non-functional testing | Performed after functional testing |
Once you go through the difference between Functional vs. Non-Functional Testing, make sure to tap on the link given below.
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