what is Prototype Model?

By -


The goal of prototyping based development is to counter the first two limitations of the waterfall model.
This prototype is developed based on the currently known requirements. Development of the prototype obviously undergoes design, coding and testing. But each of these phases is not done very formally or thoroughly. By using this prototype, the client can get an "actual feel" of the system.





Advantages

  1. It could serve as the first system.
  2. Prototyping is an attractive idea for complicated and large systems for which there is no manual  process or existing system to help determining the requirements.
  3. The customer doesn’t need to wait long as in the Linear Model.
  4. Feedback from customers are received periodically and the changes don’t come as a last minute surprise.
  5. Users are actively involved in the development
  6. It provides a better system to users, as users have natural tendency to change their mind in specifying requirements and this method of developing systems supports this user tendency.
  7. Since in this methodology a working model of the system is provided, the users get a better understanding of the system being developed.
  8. Errors can be detected much earlier as the system is mode side by side
  9. Quicker user feedback is available leading to better solutions.

Disadvantages

  1. Leads to implementing and then repairing way of building systems.
  2. Practically, this methodology may increase the complexity of the system as scope of the system may expand beyond original plans.
  3. The basic reason for little common use of prototyping is the cost involved in this built-it-twice approach

Comments

  1. IT Tutorials27 February 2017 at 01:22

    It is really a great work and the way in which u r sharing the knowledge is excellent.Thanks for helping me to understand basic concepts. As a beginner in software testing your post help me a lot.Thanks for your informative article. software testing Training | software testing Training in chennai

    ReplyDelete

Post a Comment

Popular posts from this blog

what is Modified Waterfall Model?

By -
Image
In response to the perceived problems with the "pure" waterfall model, many modified waterfall models have been introduced. These models may address some or all of the criticisms of the "pure"  waterfall model. In Water fall method , there is no VALIDATION OR VERIFICATION between the phases , so the customer will finally get unsatisfied product. This Modified Waterfall Model Involves VALIDATION or VERIFICATION between the phases , so any deviations can be corrected immediately , providing the customer satisfaction, so this is preferred.
Read more

What is User Documentation Testing

By -
User Documentation  covers all the manuals, user guides, installation guides, setup guides, read me files,software release notes, and online help that are provided along with the software to help the end user to understand the software system. User Documentation Testing should have two objectives:- To check if what is  stated in the document is available in the software To check if what is there in the product is explained correctly in the document This testing is plays a vital role as the users will refer this document when they start using the software at their location.a badly written document can put off a user and bias them against the product even the product offers rich functionality. Defects found in the user documentation need to be tracked to closure like any regular software defect.Because these documents are the first interactions the users have with the product. A good User Documentation  aids in reducing customer support calls.The effort and money spend on this effort
Read more