Functional versus Non-Functional testing
Functional Testing:
It is a type of software testing in which the system is run against the functional requirements and specifications. In addition, it ensures that the application properly satisfies the requirements. This type of testing is particularly concerned with the result of processing.
It is a type of testing that verifies that each function of the software application works in conformance with the requirement and specification. Most importantly, this testing is not concerned about the source code of the application.
Non-functional Testing:
Non-functional testing is a type of software testing that is performed to verify the non-functional requirements of the application. In other words, it verifies whether the behavior of the system is as per the requirement or not. Moreover, it tests all the aspects which are not tested in functional testing.
It is defined as a type to check non-functional aspects of a software application. Further, it is planned to test the readiness of a system as per nonfunctional parameters which are never addressed by functional testing.
Key Differences:
| FUNCTIONAL | NON-FUNCTIONAL |
|---|---|
| Firstly, it verifies the operations and actions of an application. | Firstly, it verifies the behavior of an application. |
| Secondly, it depends on the requirements of the customer. | Secondly, it depends on the expectations of the customer. |
| Additionally, it helps to enhance the behavior of the application. | Additionally, t helps to improve the performance of the application. |
| Moreover, manual execution is easy. | Further, manual execution is hard. |
| Lastly, it tests what the product does. | Lastly, it describes how the product does. |
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