lORA Moment
TORA provides useful tutorial tools for CPM calculations and for constructing the time
schedule. To use these tools, select Proje~tPla@~ri.g ===? CPM~CrititalPath:Method
from Main Menu. In the output screen, you have the option to select CPM'Calculations
to produce step-by-step computations of the forward pass, backward pass, and the
floats or CPMBai Chart to construct and experiment with the time schedule.
File toraEx6.5-2.txt provides TORA's data Example 6.5-2. If you elect to generate
the output using the NextSiep option,TORA will guide you through the details of the
forward and backward pass calculations.
Figure 6.47 provides the TORA schedule produced by CPM'BarChart option for
the project of Example 6.5-2. The default bar chart automatically schedules all noncritical
activities as early as possible. You can study the impact of delaying the start time of
a noncritical activity by using the self-explanatory drop-down lists inside the bottom
left frame of the screen. The impact of a delay of a noncritical activity will be shown
directly on the bar chart together with an explanation. For example, if you delay the
start of activity B by more than 2 time units, the succeeding activities E and F will be