Elapsed-time Scheduling

TeamFlow automatically displays the process element time spans in the form of a Gantt-style bar chart. If the process element titles do not appear on your Gantt Chart, turn on the Draw Titles on Bar Chart switch in the Preferences window.

The Gantt chart says that its time scale is in units of "Elapsed days" which is the default. To change the scheduling units, pull down the Schedule menu and select the Calendar item.

This shows the current scheduling units - Days. Pull down the drop list by clicking on the down arrow button and select the new scheduling unit, Hours, from the list.

The frame in the center of the window allows you to tell TeamFlow how to convert from the old units - Days - to the new units - Hours. In this case, we want to multiply by eight (8), so you must select the Multiply by option and enter the digit '8' in the window as shown above. You may enter any integer or decimal number greater than zero. If you do not want TeamFlow to convert, leave the default Multiply by '1' unchanged.

Click the OK button. TeamFlow will apply the specified conversion to all process element durations in the model and then re-schedule the project. Again, the loop detection warning will be displayed.

This window will be displayed every time the Scheduler re-schedules your project and detects a logic loop in the process flow arrows, unless you are in AutoSchedule mode. AutoSchedule mode causes the Scheduler to re-schedule your project every time you make a logic change, such as adding or deleting a process element, adding or deleting an arrow, or changing a process element duration. The TeamFlow Scheduler is so efficient that most projects may be left in this convenient mode with no discernible delay in response times.

Pull down the Schedule menu and select AutoSchedule unless it is already checked.

The Gantt chart now displays "Elapsed hours." On your color monitor, the feedback arrow from the 'N' exit point of the decision "Accept IMF's Mission Statement" back to Jim Phelps' segment of the meeting "Review Mission..." will be colored red to indicate that it has been ignored by the scheduler.

To see how the Scheduler works in AutoSchedule mode, scroll the Gantt Chart pane horizontally until the bars representing the "Ops Plan", "Tech Plan" and "Accept IMF's Mission Statement" process elements are completely visible.

Double-click the Gantt chart bar labelled "Ops Plan" and select Show Information from the popup menu. Change the report's duration from "8 hours" to "16 hours." Click the Apply button and watch the Gantt Chart.

The Finish of the "Ops Plan" bar moves to Hour 48 (actually to the end of Hour 48, sixteen hours after it began at the beginning of Hour 33). The arrow connecting this report to the following decision establishes a predecessor-successor relationship between them. This means the decision cannot start until all of its predecessors have finished.

The decision has two predecessors - Jim's "Ops Plan" report and Barney's "Tech Plan" report. Because the "Tech Plan" report finishes in Hour 40 and the "Ops Plan" report does not finish until the end of Hour 48, their successor activity, the decision, cannot start until the beginning of Hour 49, as shown on the Gantt Chart.

Before we move on to scheduling in actual dates, we must return the elapsed-time schedule to units of Dates. TeamFlow will not let you switch modes unless you are in Dates. To do this, select Calendar from the Schedule menu, select Dates from the pull-down list, and specify Divide by '8' as a conversion.

Continue with Lesson 2.

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Last Update: October 24, 2005