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) What is a primary Actor in a Use-Case? How is it drawn in the diagram? How
is that same actor represented in the DFD diagram? 2) What is the relationship between level 0 and level 1 DFD diagrams? [2 points]
Cite steps in Building DFDs hierarchy: [3 points] 3) Suppose you are in the process of drawing the DFDs, and you have found that
one of your Level 1 DFD describing a process in level 0, has more than 8 subprocesses. What does that indicate? And How do you fix it? 4) Read the following case study description and answer the questions given
below.
Consider a system for buying a new car. The customer should inspect the
vehicle and chose the type, the color and the desired characteristic.