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Primavera P6 PPM Version 21: Activity Critical Path Toolbar

Oracle Primavera P6 Version 21 introduced a new toolbar titled Activity Critical Path. The help file does not explain how the options operate and some of the functions are not very intuitive.

I have documented these functions in my new P6 Version 21 book and this paper is an extract from this book.

Aim

The aim of this paper is to explain how the new P6 Activity Critical Path toolbar functions operate.

Primavera P6 PPM Version 21: Activity Critical Path Toolbar

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Activity Critical Path

There is a new toolbar in Version 21 titled Activity Critical Path.

  • The Toolbar is displayed by right clicking on any toolbar and checking the Activity Critical Path option.
  • This will display the toolbar (see picture on the right).

IMPORTANT NOTE: Clicking on a button will activate the command and clicking again will deactivate the command.

The Oracle Cumulative Feature Overview file states:

To aid in the resolution of delayed critical paths before they become project over-runs, P6 Professional can show:

  • Activities on up to 30 activity-driven critical paths, calculated on the forward pass, backward pass, or forward and backward passes (with or without resource leveling).
  • The activities on up to 30 resource driven critical paths, calculated on the backward pass with resource leveling.

This Oracle description is not clear and I will work through the icons one at a time and explain how the functions work.

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Backward Resource Driven Critical Path

Function:

The schedule on the right has no relationships between activities and has been levelled.

When selecting A1040 and Backward Activity Critical Path you will see the result on the right.

When selecting A1040 and Backward Resource Driven Critical Path you will see the result on the right.

Note: Review the Backward Activity Critical Path now and then come back and review this one.

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Increase Maximum Multiple Critical Path Counts

Function

This increases the value of the Maximum Multiple Critical Path Counts.

Maximum Critical Path Count

Function

This is not a command button but displays the number of Maximum Critical Paths that has been set by the user.

Selecting one Maximum Critical Path Count (see picture on the right).

Selecting two Maximum Critical Path Count (see picture on the right).

Thus this command determines how many chains of events you wish to see.

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Decrease Maximum Multiple Critical Path Counts

Function

This decreases the value of the Maximum Multiple Critical Path Counts.

Select Maximum Multiple Critical Path Counts

Function

This opens a form allowing the setting of the Maximum Multiple Critical Path Counts.

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Enable Group and Sort

Function

Clicking this button hides and displays the current applied Group and Sort bands. Hiding the bands enables the user to see the chain of events as an uninterrupted single chain of activities:

  • Group and Sort enabled (see picture on the right)
  • Group and Sort disabled (see picture on the right)
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Backward Activity Critical Path

Function

This option displays the chain of events before a selected activity that has the least amount of Float. If there is a critical path it will display this and if there is not, then it will find the chain of events with the least amount of float to the start of the project and display this as the Backward Activity Critical Path.

The picture on the right displays the Backward Activity Critical Path from activity EC1500, which is a chain of events that is on the schedule Critical Path.

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Forward Activity Critical Path

Function

This option displays the chain of events after a selected activity that has the least amount of Float. If there is a critical path it will display this path and if there is not, then it will find the chain of events with the least amount of float to the end of the project and display this as the Forward Activity Critical Path.

The picture on the right displays the Forward Activity Critical Path from activity EC1840, which is a chain of events that is not on the schedule Critical Path.

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Activity Critical Path

Function

This option displays the chain of events before and after a selected activity that has the least amount of Float, as per the parameters above.

Thus, the picture on the right shows both the Forward Activity Critical Path and Backward Activity Critical Path from Activity PD1040.

If you want to learn more about Planning and Control with Microsoft Project, please check out my online course here.

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Paul Harris
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Paul Harris
Certified Cost Engineer, Certified PRINCE2™ Practitioner
Subjects of Expertise: Project Management
Featured Uplyrn Expert
Paul Harris
Certified Cost Engineer
Certified PRINCE2™ Practitioner

Subjects of Expertise

Project Management

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