Prototype mode may be used when a lot of interaction with the end users is needed by the required system.Revision and enhancement of the product using the feedback received.Review by the customers and end users and the necessary feedback obtained.Identification of basic requirements which includes the input and output information desired.A prototype provides specifications for a real working system rather than a theoretical one. This model is generally implemented in Software Development Life Cycle where a rudimentary version of the functionality is built, tested, feedback obtained and reworked till a final acceptable model is delivered. A prototype is an elementary working model of a product or functionality usually that has been developed for demonstration purpose or as a part of development Cycle.
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