Q1: 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?

Q2:What is the relationship between level 0 and level 1 DFD diagrams? [2 points]

Cite steps in Building DFDs hierarchy: [3 points]

Q3: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 sub-processes. What does that indicate? And How do you fix it?