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What is Prototype Model?

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The goal of prototyping based development is to counter the first two limitations of the waterfall model. This prototype is developed based on the currently known requirements. Development of the prototype obviously undergoes design, coding and testing. But each of these phases is not done very formally or thoroughly. By using this prototype, the client can get an "actual feel" of the system. Advantages It could serve as the first system. Prototyping is an attractive idea for complicated and large systems for which there is no manual  process or existing system to help determining the requirements. The customer doesn’t need to wait long as in the Linear Model. Feedback from customers are received periodically and the changes don’t come as a last minute surprise. Users are actively involved in the development It provides a better system to users, as users have natural tendency to change their mind in specifying requirements and this method of developing systems s