The temporary prototype is developed to showcase to cilent based on the customer new requirements. The basic idea of prototype model is that the prototype gets reviewed and approved by the client before proceeding to a design or coding phase can proceed. However, the prototype wont hold the exact logic of the original software product. The prototype is used to showcase the functional behaviour of the developing product. The main objective of prototype model is developing software applications based on the prototypes. Prototyping Model is also known as Evolutionary approach. To overcome these issues, prototyping model was introduced. To avoid these, there is a requirement of new SDLC model. This becomes the failure of the waterfall model and also increases the cost if the product is not developed as expected. Because the client reviews the development only after the testing completion in waterfall model. When followed the waterfall model, the final product may not satisfies the client or client has an another expectation on the output or the product may not developed properly due to the communication gap.
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