How Primavera P6 Works

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How Primavera P6 Works? Primavera P6 Project Management Software is a leading software in Project Management. It can help the Planning Engineers to create a good comprehensive schedule to guide the project based on targets. In this article, we will explain you about How Primavera P6 Works simply. This will help you to understand P6 scheduling basics, including what is critical path in Primavera P6.

How Primavera P6 Works

How Primavera P6 Works? It is actually quite simple. Before the era of Project Management Software, we did the project scheduling by manually calculate the schedule by Critical Path Method. Primavera P6 is here to help us to create good scheduling with Critical Path Method in better way. This CPM in Primavera P6 is extremely useful for scheduling.

The Critical Path Methodology is a mathematical algorithm for planning or scheduling project activities. So, here is basically how Primavera P6 works:

  1. Primavera P6 help you to determine dates to project activities
  2. Primavera P6 help you to compute your project’s Finish Date
  3. Primavera P6 help you to let you know your project’s Critical Path

P6 Scheduling Basics

Critical Path methodology scheduling is a mathematical process and it has a list requirements to meet before it can work it’s magic.

Before you can work with the Critical Path Method (or run Primavera P6 Scheduler), you have to prepare several things:

  • List of Activities
  • List of Activities Durations
  • Relationship between Activities

The two first points above are the most important things. The third point is also a must so that you can clearly determine your critical path of your project scheduling.

See Also : Primavera P6 Activity Relationships

Scheduling Process

How does the scheduling process in Primavera P6 work? The Critical Path Methodology process in Primavera P6 pass through your project activity by activity twice.

It begins with the first activity and step forward – this can be called the Forward Pass. For every activity, it assigns or computes that activity’s Early Dates.

Early Dates is defined ass the most optimistic start and finish dates in your schedule work activities.

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The Backward Pass goes next. This part you begin at the last activity in your schedule network, and move backward determining dates to each activity, until you get the first activity in the network. These important dates are usually called as Late Dates.

This is basically just as working in manual PERT diagram. See the picture below for illustration.

How Primavera P6 Works

Late Dates determine the latest your activities can start and finish without delaying the project finish date. This is simple yet important information for you.

See Also : How to Update Progress in Primavera P6

How to know Critical Path in Schedule

To find a Schedule Critical Path, we get to compute the Total Float for every activity. Total Float is the gap between the Late and Early Dates.

Total Float = Late Start – Early Start (or Late Finish – Early Finish), Total Float how much flexible your schedule is based on an activity.

See Also : How to Reduce Total Float in Primavera P6 | Change Total Float in P6

How Primavera P6 Works 2

After Total Float is measured for all activity, you will know that there are many activities have Total Float = 0d. And it’s those 0d-Float activities that determine your schedule Critical Path. Basically, you can simply follow through the path of all activities which Total Float = 0d and your Critical Path will appear itself.

We hope that you understand how Primavera P6 works now. If you are interested in related articles, please subscribe.

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