.1)requirement analy:- in that phase what are the 
requirement of sofware where it will be apply in the future
so thest phase is used if u giong to design any thing 
before that u need analysis.
2)designing:it is the major phase in which decided who can 
acces who cannot acces all those utillities.so from that 
the desigh\n is done.
3)coding:- coding need to be more simple & give more 
funtionallity.that type of coding should be done
4)testing :-in testing all phases all runnig in the same 
environment that it will be use due to testing all errors 
should be sort out.
5)implementation:in this phase u need to implement ur needs 
carefullu without making any erros it is a major part.
6)maintenance.should be done on regular basis