PROTOTYPING MODEL
CHARACTERISTICS: The process of design, prototyping, customer evaluation, and review & updation repeats again and again in a loop until the customer gets satisfied with the prototype. It is iterative in nature. It is a combination of linear sequential and spiral models. Generally, its deadlines are not clear. Used when customer satisfaction is our topmost priority. ADVANTAGES: Customers can see steady progress. This is useful when requirements are changing rapidly. Higher chances of customer satisfaction. The developed software is highly efficient and reliable. Real development start later after the prototype which makes it easy for developers that what they have to do. DISADVANTAGES It is impossible to know how long it will take. There is no way to know the number of iterations that will be taken. Hard for cost estimation. Unclear customers can cause too much cost to the firm. Can’t predict anything about the customer’s choice which changes very rapidly. download notes