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Answer Posted / yuvaraj
WaterFall Model is a Top Down Approach.
Various Steps Performed in Water fall Model
1)Analysis
2)Design
3)Implementation
4)Testing
5)Maintenance
*)In water fall model First you finish the Current step
after that only you move to Next step.
*)You can not move forward or backward.
*)Disadvantage:Once an application is in the testing stage,
it is very difficult to go back and change something that
was not well-thought out in the concept stage
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