-The Disadvantage of the Four-Model Approach Is ____

Multiple Choice

-The disadvantage of the four-model approach is ____.

A) it gives an unclear picture of the current system functions before any modifications or improvements are made
B) the requirements of a new information system always are different from the current information system
C) the added time and cost needed to develop a logical and physical model of the current system
D) it results in unhappy users