Prototyping Model
1) The Prototyping Model is appropriate in case where development of project is based on imperfect, incoherent and unclear requirement.
2) The basic idea here is that in place of freezing the requirements before any design or coding can proceed, a incidental prototype is built to help understand the necessities. 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 can enable the client to better understand the requirement of the desired system. This results in more stable requirements that change less frequently.
3) Prototyping is a pretty idea for intricate and large for which there is no manual process or existing system to help conclude the requirements. In such situations, letting the client “play” with the prototype provides precious and intangible inputs that help determine the requirements for the system. It is also a successful method of demonstrating the feasibility of a certain approach.
4) To better understand the customer necessities, a quick prototype is built before carrying out the development of authentic system. A prototype is a working model of the actual system. It is a toy implementation of the system, which usually exhibits limited functional capabilities, low reliability and incompetent performance compared to the actual system.
5) It is regularly said that formation of prototypes will incur heavy costs but in some situations, the cost of software development without prototyping may be more than the prototyping. There are two major reasons for this.
i. The knowledge of development the prototype might reduce the cost of the afterward phases when the actual software development is done.
ii. In many projects, the requirements are constantly changing, particularly when development takes a lengthy time.
Activities in Prototyping
Various activities can be listed under prototyping as:
Step 1) Developer and customer congregate and classify the overall objectives for the software, identify whatever requirements are known and outline areas of uncertainty.
Step 2) A “quick design” occurs which focuses on input approaches, output formats etc. to be shown to the customer.
Step 3) Construct a prototype
Step 4) The prototype is evaluated by the customer and user to treat requirements for the software to be developed.
Step 5) Iteration occurs as the prototype is tuned to satisfy the needs of the customer while at the same time enabling the developer to better understand what needs to be done.
1) The Prototyping Model is appropriate in case where development of project is based on imperfect, incoherent and unclear requirement.
2) The basic idea here is that in place of freezing the requirements before any design or coding can proceed, a incidental prototype is built to help understand the necessities. 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 can enable the client to better understand the requirement of the desired system. This results in more stable requirements that change less frequently.
3) Prototyping is a pretty idea for intricate and large for which there is no manual process or existing system to help conclude the requirements. In such situations, letting the client “play” with the prototype provides precious and intangible inputs that help determine the requirements for the system. It is also a successful method of demonstrating the feasibility of a certain approach.
4) To better understand the customer necessities, a quick prototype is built before carrying out the development of authentic system. A prototype is a working model of the actual system. It is a toy implementation of the system, which usually exhibits limited functional capabilities, low reliability and incompetent performance compared to the actual system.
5) It is regularly said that formation of prototypes will incur heavy costs but in some situations, the cost of software development without prototyping may be more than the prototyping. There are two major reasons for this.
i. The knowledge of development the prototype might reduce the cost of the afterward phases when the actual software development is done.
ii. In many projects, the requirements are constantly changing, particularly when development takes a lengthy time.
Activities in Prototyping
Various activities can be listed under prototyping as:
Step 1) Developer and customer congregate and classify the overall objectives for the software, identify whatever requirements are known and outline areas of uncertainty.
Step 2) A “quick design” occurs which focuses on input approaches, output formats etc. to be shown to the customer.
Step 3) Construct a prototype
Step 4) The prototype is evaluated by the customer and user to treat requirements for the software to be developed.
Step 5) Iteration occurs as the prototype is tuned to satisfy the needs of the customer while at the same time enabling the developer to better understand what needs to be done.