The system development team must understand the operation the operations of the existing system and the problems faced by the system. Numerous information gathering techniques can help understand and determine the information requirements of the new system by gathering information from a variety of sources.

System analysis is the process of gathering information about the existing system, which may or may not be computerized, while identifying the systems strenghts and problems. The information is then analyzed to come up with a concept for the new system.

Numerous information gathering techniques can help understand and determine the information requirements at the system analysis phase. Each of these techniques has its own advnaatges and disadvanatges.

Required:

1. Discuss THREE (3) advantages the use of prototyping

2. Explain THREE (3) differences between structured and unstructured interview.

3. Describe FOUR (4) symbols used in a Yourdans DFD.

4. Define the Joint Application Design Technique.