a tester should be thorough with the entire functionalities 
of the application to be tested n this allows him to know 
about different types of application developed in defferent 
environments.A single developer might be developing just a 
minute part of the entire application n he may not be aware 
of the application as a whole.In this case I felt a 
tester's role is more interesting.

Secondly, the most important is not just to develope 
something but to develope things with HIGH quality. That 
takes the role of a tester to a different level. 

N definitly i will be proud to say I found a critical bug n 
that bug has been fixed.

S/W test engineer