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Wednesday, January 26, 2022

What Is Prototype Model? | Type of SDLC Models

What Is Prototype Model? | Type of SDLC Models

Prototype Model

  • It is a trial version of a software.
  • The Prototyping Model should be used when the requirements of the product are not clearly understood or are unstable.
  • Flow like:

                1. We will take basic requirements / Initial requirements

                2. Based on judgment, we will create initial prototype (Prototype – is a working model)

                3. Once working prototype is build, we will ask client to check

                4. Next step will be test and enhance / revise

                5. Again, we will call user to check and use it and again we will make change as per user's feedback until we get all the requirements from user

                6. Once, all requirements are fulfilled and client will agree, then SRS document made and then only SDLC process will start.

  • The prototype are usually not complete systems and many of the details are not built in the prototype. The goal is to provide a system with overall functionality.
  • Example-Online system


Prototype Model
Prototype Model

Advantages and Disadvantages of Prototype Model

Advantages of Prototype Model

1. It is easy to detect errors.

2. We can find missing functionality easily.

3. It can be reused by the developer for more complicated projects in the future.

4. It ensures a greater level of customer satisfaction and comfort.

5. It is ideal for online system.

6. It helps developers and users both understand the system better.

7. Integration requirements are very well understood and deployment channels are decided at a very early stage.

8. It can actively involve users in the development phase. 

Disadvantages of Prototype Model

1. This model is costly.

2. It has poor documentation because of continuously changing customer requirements.

3. There may be too much variation in requirements.

4. Customers sometimes demand the actual product to be delivered soon after seeing an early prototype.

5. Customers may not be satisfied or interested in the product after seeing the initial prototype.

6. There is certainty in determining the number of iterations.

7. There may be incomplete or inadequate problem analysis.

8. There may increase the complexity of the system.


Read More Articles:What Is V Model (Verification and Validation Model)? | Type of SDLC Models


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