Scheduling in Primavera P6> Understanding Constraints in Primavera P6
Understanding Constraints in Primavera P6 (6m 19s)
This lessons starts an exploration of Activity Constraints in P6. We'll explain what constraints are, how they can be used to tweak the scheduler's dates and some best practices as well.
Video: Understanding Constraints in Primavera P6
Welcome back. In this lesson we'll be starting our discussion about activity constraints in Primavera P6. This lesson will cover an overall general understanding of activity constraints, what they're for, how you use them and how they work in Primavera P6. As you use Primavera more and more, what you'll notice is that the Primavera P6 scheduler calculates very idealistic dates and what that means is that Primavera is great at ensuring that the schedule is the most efficient as possible, meaning that each activity follows the other one perfectly. However, in the real world, we can always accept these idealistic dates and that's because we have real-world constraints that we need to plan around. For example, Primavera says start this activity on day 10 but maybe the materials aren’t arriving until day 13. So we need to have the ability to tweak those dates. We need to have the ability to have that second activity start on June 1st when the materials have arrived. That's what constraints are for.
Constraints are date restrictions that can be applied to an activity. What that means is, this is a facility to allow you to adjust the dates that the Primavera scheduler has calculated. There are actually two constraints for each activity. There's a primary constraint and a secondary constraint as you see in the scre...