For the DFD shown in Figure 13.25: (a) identify your choice of the bubble that should be used as the central transform; (b) explain your reasons for rejecting the claims of each of the bubbles around...

For the DFD shown in Figure 13.25: (a) identify your choice of the bubble that should be used as the central transform; (b) explain your reasons for rejecting the claims of each of the bubbles around it; (c) produce a first-cut Structure Chart from it.