Iterative Model

• 
  Developer provide the specifications
• First version of the product with minimum and essential features are launched in the market
• Based on the feedback additional features are added. And this continues till the final product is delivered.
• This model combines both the features of waterfall and prototype model.
• This supports incremental building of the new system.
• Since the testing is done at each level the product is better tested.
• For the client it is good as he has to pay in installments as new capabilities are added one after the other

What are the demerits of Iterative Model?

• The model can be useful if the system is understood properly
• If the soft ware developed does not suit the environment at all, the time and money is wasted
• Since the soft ware is developed with the imagination of the developer, he might not have envisioned the system properly
• Good relation with the client is needed
• After using the system the user may say that he is not satisfied with the system because of the reason beyond the satisfaction of the system

Iterative Model:

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