What is Schedule Comparison?
Schedule Comparison is the method to compare and find the differences between two project schedules of the same project. In this process, the added/deleted activities, changes in relationships, changes in calendars, changes in Total/Free float, added/deleted resource assignments, etc. are compared between two project schedules.
Primavera P6 Visualizer
Primavera P6 Visualizer is a tool used to create insightful visualizations such as timelines, scheduling information, and schedule comparisons. In this article, we will explore how to compare the baseline project schedule and revised project schedule for a project using Primavera P6 Visualizer.
Comparison of Baseline Schedule and Revised Schedule
Primavera P6 Visualizer can be launched from Primavera P6 by clicking the “Tools” menu and “Visualizer” as shown in the figure below. The Primavera P6 visualizer can be launched as a standalone application as well.
Figure 1: Launching Primavera P6 Visualizer from Primavera P6
The revised project schedule can be compared with the baseline by following the steps below.
We will open Oracle Primavera P6 Visualizer, click the “+” in the menu bar, and “Schedule Comparison.”
Figure 2: Schedule comparison menu in Primavera P6 Visualizer
The next step is to create a new schedule comparison. To do that we must select “Create New” as an option. For instance, we will enter a “Name” for the new schedule comparison as “comparision1.” Then to select project schedules for comparison we will click “Options.”
Figure 3: Creating a new Schedule comparison
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Then in the “Select Projects” window, we will select Baseline and Revised Project as shown in Figure 4 below, and click “Add.
Figure 4: Selecting Baseline and Revised Schedule for Schedule Comparison
The selected projects will be displayed at the bottom of the window as shown in figure 5 below.
Figure 5: Original Baseline and Revised Project added for Schedule Comparison
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After selecting the revised and original project schedule, we will click “Save and Draw” to generate the Project Differences Report.
Figure 6: Save and Draw Schedule Comparison
Once we click “Save and Draw” in the comparison window, the Project Differences Report will be generated by Primavera P6 Visualizer with the following data. Note that the baseline project schedule will be referred to as old and the revised project schedule as new in the project differences report.
WBS Code
Calendar Name
Critical Activities
Actual Material Cost
Remaining Material Cost
Actual Start Dates
Actual Finish Dates
Late Start Dates
Late Finish Dates
Early Start Dates
Early Finish Dates
Start Dates
Finish Dates
Total Float
Free Float
Remaining Duration
At Completion Duration
Actual Duration
Original Duration
Actual Percent Complete
Units
Activity Code Assignments Added/ Deleted
General Resource Assignments
General Relationship Differences (Lag)
Activity Relationships Added
Activity Relationships Deleted
Figure 7: Snapshot of Project Differences Report generated by Primavera P6 Visualizer
Conclusion:
The schedule comparison in Primavera P6 Visualizer is very useful for finding the differences between two project schedules of the same project. If any modifications are made to the new project schedule, with respect to the original project schedule, the modifications shall be examined in detail using the project differences report generated by Primavera P6 Visualizer.
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