Every testing process follow the waterfall model of the
testing process.
1.test strategy and planning
2.test design
3.test environment setup
4.test execution
5.defect analysis and tracking
6.final reporting

Hi Priya I want detail explanation

WaterFall Model :
                It is a linear sequestial model
                It is very simple model to implement
                It is the first model.
                It needs very few resources to implement

                In this model there is no back tracking.
                For example if any error occured an any
                stage of software development,it cann't be
                corrected in that build.
byee
friends
rajendra

In waterfall model,once the requirements get freezed,there 
is no possibility for the update of the requirements.

Water fall model :- This is very simple model.  It moves 
like water fall from top to down of  SDLC.  The drawback of 
this model is ineffectiveness of verification and 
validation activities.

This is the process where by water is flowing from one 
place to another in a very high speed from the high(hill) 
level to lower level.  
 This is very simple model,   
 This occors when there is continuation of rain full