First of all execute high priority test cases.  If time
permits execute remaining test cases.


correct me if I am wrong

When there is no time we check whether the main 
functionalities are working, areas which are visible to the 
end user and high risk areas.

we need to priorities the test cases in such conditions,
like which functionality is most visible to the end user or
customer ,which functionality has largest safety impact on
the business,which functionality has largest financial
impact on the user then run test cases.

correct me if m wrong

There is another approach if while writing the test cases we
can mark the test cases as sanity test cases where major of
the business rules and functionalities are covered is taken
from the SRS and FRS.Then the 1000test cases is covering
this things then it is easy to complete the testing by
covering this sanity test cases in sanity testing

While writing Testcases one should prioritize the testcase 
wrt modules, then TL can prioritize the testcases and can 
easily execute the High priority cases

Please Revert me if I am wrong

md_navaz@yahoo.com

Identify the test cases which decides the behaviour of the 
application. Divide the test cases into high priority and 
high severity test cases, high priority low severity test 
cases and high severity low severity test cases.Execute the 
test cases in the ascending order.Thus, making sure the 
maximum functionality of the application under test is 
covered.