Prototype Model

Prototype Model:

Prototype model is generally used when the requirements are unclear. It is used 

when the customer is unclear about the details of the input, process and the output needs of the software.

It is usually built using several "shortcuts". The shortcuts might involve using inefficient, inaccurate, or dummy functions.

In this prototyping quick iterations are planned and quick modelling occurs.

The prototype is implemented and then accessed by customer or user for their feedback to refine requirements for the software.

That prototyping is turned and iterated till the customer satisfaction

Step Wise Approach to Design a Software Prototype

Requirement gathering:

Understanding the very basic product requirement especially in terms of user interface.

Quick design:

After requirement gathering, a quick design is made that is work on flow diagram, languages etc.

Building prototype:

In this basic requirements are showcaseed and user interfaces are provided. This prototype gives some look and feel to the customer in what will be exactly product.

Evaluate / review of the prototype:

The Prototype developed is then presented to the customer and the other stakeholder in the project. Feedback is collected and used for further enhancements.

Refine prototype:

Feedback and comment are discussed and some negotiation happen with customer based on time and budget constraints. The changes accepted again incorporated in new prototype. This cycle repeats until customer expectations are met.