Draw Figure $7-4$ and $7-5,7-7,7-8,$ and $7-9$ in the textbook. Use Microsoft VISIO for your

work. Set different levels to have different pages. $($You need to have context diagram, level$-$

$0,$ level$-1,$ and level$-2$ diagrams.$)$ CHAPTER $7$ STRUCTURING SYSTEM PROCESS REQUIREMENTS

FIGURE $7-5$

Level$-$O DFD of Hoosier Burger's

food$-$ordering system