ok suppose on hr application is there ok
in that so many minor functionalities are there but the 
major functionalities are like

* name
* DOB.......

IF you wont enter any data in the mandatory field it has to 
prompt an error message
and after filling all the mandatary fields then only the 
save button should come to enable state
this is one of the major functionality in the application

so we will write test cases for all the functionalities
the particulat(above functionality) test case id is 100.
ok total 300 test cases are there
to execute all those it may take 1 month time.
if suppose you are execute the test cases in the 100th test 
case when we click on save button the application crashes 
so it is a show stopper

so what the tester will do is first he will check all the 
functionalities with out executing all the testcases with 
in 2 or 3 days if the build is acceptable testers will do 
real testing otherwise we  will reject the build.


if you have any doubts post me jyoshna_5785@yahoo.com


ok in