The analysts at Techno Info Systems are considering the four-model approach to system development for a new client. If they make use of the four-model approach, which of the following is a likely outcome?
A. It will not be possible to get ac clear picture of the current system functions before modifications are made.
B. Time taken to develop the model increases.
C. The requirements of a new information system will always be different from the current information system.
D. Costs need to develop a logical and physical model of the current system will be less.