In SDLC there are six phases
1)initial Phase :-Intracting with clients and gathering the 
requirements from clients by business Analyst and engaged 
manager . they will prepare BRS (Business requirement 
specification).
2)Analysis :-wheather that requiremnts are safficient or 
not, to develop the application and test the aplication.
In this phase System anlyst,PM and TM prepare a resoure 
plan and time plan.(It is temparvary plan).They will 
prepare the SRS (system requirement specification).
3)Design phase :- Design the HLD( high level design) and LLD
(low level design) by chief architecture (or) technical 
lead).Prepare the document TTD(Technical design document).
4)coding phase :- Coding developing according to the 
particular requirements by programmers. Prepare the 
document SCD( Source code document).
5)TEsting Phase :-Test the application by test eng . 
provide Quality software.
6)Delevary to the client :- Deploy the software by SR.test 
engg.