Manual Testing is a kind of software testing in which a software tester develops and executes the test cases without using any automated testing tools. The main objective of manual testing is to detect the issues, bugs, & defects of a software application.

There are several stages.

Unit Testing: This initial stage in testing normally carried out by the developer who wrote the code and sometimes by a peer using the white box testing technique.

Integration Testing: This stage is carried out in two modes, as a complete package or as an increment to the earlier package. Most of the time black box testing technique is used. However, sometimes a combination of Black and White box testing is also used in this stage.

System Testing: In this stage the software is tested from all possible dimensions for all intended purposes and platforms. In this stage Black box testing technique is normally used.

User Acceptance Testing: This testing stage carried out in order to get customer sign-off of finished product. A 'pass' in this stage also ensures that the customer has accepted the software and is ready for their use.