Manual testing is a systematic activity which identifies defects in the software and helps in correcting and preventing them before the software is released to the end user.
In a world of increasing dependence on Software, Improper functioning of software can lead to serious circumstances such as injuries or death (aero plane software failures may lead to fatalities), loss of time (slow processing), loss of money etc.
Testing of Software has become one of the fastest growing areas of corporate IT expenditure.