Schedule Comparison Using Primavera P6 Visualizer

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.

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.”

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.”

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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.

The selected projects will be displayed at the bottom of the window as shown in figure 5 below.

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After selecting the revised and original project schedule, we will click “Save and Draw” to generate the   Project Differences Report.

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.

1. WBS Code
2. Calendar Name
3. Critical Activities
4. Actual Material Cost
5. Remaining Material Cost
6. Actual Start Dates
7. Actual Finish Dates
8. Late Start Dates
9. Late Finish Dates
10. Early Start Dates
11. Early Finish Dates
12. Start Dates
13. Finish Dates
14. Total Float
15. Free Float
16. Remaining Duration
17. At Completion Duration
18. Actual Duration
19. Original Duration
20. Actual Percent Complete
21. Units
22. Activity Code Assignments Added/ Deleted
23. General Resource Assignments
24. General Relationship Differences (Lag)
25. Activity Relationships Added
26. Activity Relationships Deleted

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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