| The purpose of functional testing is not only to validate a software system or component against the various functional specifications and requirements defined but also to verify whether it is ready to be deployed into the live environment. |
This test evaluates a software's internal design or the structure of its code. It is also called white-box testing, clear box testing, or glass box testing. |
| Functional testing is a black-box test since no knowledge of the internal logic of the system is used to create test cases. |
Structured testing demands fundamental knowledge of a programming language, as opposed to functional testing. In order to implement structural testing, the test engineer should have thorough knowledge of the code's internal execution and the software's implementation. |
| Some types of functional testing include system testing, regression testing, sanity testing, and user acceptance testing. |
Among the structural testing techniques are path testing, code coverage testing, logic testing, etc. |
