Advantages and Disadvantages of Prototype model
Prototyping Model is used when the customers do not know the exact project requirements beforehand. In this model, a prototype of the end product is first developed, tested and refined as per customer feedback repeatedly till a final acceptable prototype is achieved which forms the basis for developing the final product.
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System is partially implemented before or during the analysis phase thereby giving the customers an opportunity to see the product early in the life cycle.
Advantages of using Prototype Model :
- This model is flexible in design.
- It is easy to detect errors.
- We can find missing functionality easily.
- There is scope of refinement, it means new requirements can be easily accommodated.
- It can be reused by the developer for more complicated projects in the future.
- It ensures a greater level of customer satisfaction and comfort.
- It is ideal for online system.
- It helps developers and users both understand the system better.
- Integration requirements are very well understood and deployment channels are decided at a very early stage.
- It can actively involve users in the development phase.
Disadvantages of using Prototype Model :
- This model is costly.
- It has poor documentation because of continuously changing customer requirements.
- There may be too much variation in requirements.
- Customers sometimes demand the actual product to be delivered soon after seeing an early prototype.
- There may be sub-optimal solutions because of developers in a hurry to build prototypes.
- Customers may not be satisfied or interested in the product after seeing the initial prototype.
- There is certainty in determining the number of iterations.
- There may be incomplete or inadequate problem analysis.
- There may increase the complexity of the system.