Definition of Software Testing

It is a process of finding or identifying defects in s/w is called s/w testing. It is verifying the functionality (behavior) of the application(s/w) against requirements specification. It is the execution of the s/w with the intention of finding defects. It is checking whether the s/w works according to the requirements.

Testing is the process of evaluating a system or its component with the intent to find that whether it satisfies the specified requirements or not. 

Testing is executing a system in order to identify any gaps, errors or missing requirements in contrary to the actual desire or requirements.

There are 3 types of s/w testing, namely,

1) White box testing – also called unit testing or structural testing or glass box testing or transparent testing or open-box testing.

2) Grey box testing.

3) Black box testing – also called as functional testing or behavioral testing.