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.
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