What is Prototype Model

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What is Prototyping Model

The prototype model requires that before carrying out the development of actual software, a working prototype of the system should be built. A prototype is a toy implementation of the system. A prototype usually turns out to be a very crude version of the actual system, possible exhibiting limited functional capabilities, low reliability, and inefficient performance as compared to actual software.

Steps of Prototype Model

• Requirement Gathering and Analyst
• Quick Decision
• Build a Prototype
• Assessment or User Evaluation
• Prototype Refinement
• Engineer Product

Advantages of Prototype Model

• Reduce the risk of incorrect user requirement
• Good where requirement are changing/uncommitted
• Regular visible process aids management
• New requirements can be easily accommodated as there is scope for refinement.
• Support early product marketing
• Reduce Maintenance cost.
• Missing functionalities can be easily figured out.
• Errors can be detected much earlier as the system is made side by side.
• The developed prototype can be reused by the developer for more complicated projects in the future.

Disadvantages Prototype Model

• Difficult to know how long the project will last.
• Prototyping tools are expensive.
• It is a time-consuming process.
• Special tools & techniques are required to build a prototype.
• It is very difficult for developers to accommodate all the changes demanded by the customer.
• The customer might lose interest in the product if he/she is not satisfied with the initial prototype.
• Poor Documentation due to continuously changing customer requirements.

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