Discussion
Which of the following statements is/are true for the Waterfall Model? Statements: i) This model does not work smoothly if there are some issues left at the previous step. ii) It projects the process of development in a cyclic manner, repeating every step after every cycle of software development life cycle process. iii) This model considers risk, which often goes unnoticed by most other models. iv) This model provides means of testing of software at each stage in a reverse manner.
Answer: A
Only statement i is true for the Waterfall Model. Because the model moves from one phase to the next in order, it works badly when issues are left unsolved at a previous step. Statement ii describes iterative or cyclic models, statement iii (consideration of risk) is a feature of the spiral model, and testing at each stage in a reverse manner (iv) is the V-model. So the options with ii, iii or iv are wrong. In the waterfall model the stages (requirements, design, coding, testing and maintenance) follow one another in a line, with little return to an earlier stage.
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