PE FIGUI

Context di

PE FIGURE $7-2$ Level$-1$ DFD

Case Questions

Are the DFDs in PE Figures $7-1$ and $7-2$ balanced? Show that they are, or are not. If they are not balanced, how can they be fixed?

Decompose each of the core processes in PE Figure $7-2$ and draw a new DFD for each core process.

Has the team overlooked any core processes in the system that should be in PE Table $7-1$ and PE Figure $7-2?$ What would they be$?$ Add them to PE Table $7-1$ and PE Figure $7-2.$

Redesign PE Figures $7-1$ and $7-2$ so that they are clearer and more efficient and more comprehensive.

Why is it important for the team to create DFDs if they are not going to write the actual system code themselves?