About this lesson
When you are updating tasks in a project, you might want to make some light adjustments. You can use the free slack field to see how much time you have before the task becomes critical.
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Download this lesson’s related exercise files.Add Lag and Review the Critical Path.mpp
355.5 KB Add Lag and Review the Critical Path - Completed.mpp
Add Lag and Review the Critical Path
As mentioned in previous lessons, any task in the critical path can directly affect the finish date for your project. Just add one extra day of duration to a critical task and you push the project out a day. Subtract a day from a critical task and you pull the project in one day.
You can use the free slack field to see how much time you have before the task becomes critical.
When you are updating tasks in a project, you might want to make some light adjustments. You should always be aware of when you are updating critical tasks or non-critical tasks.
When you are updating your project, you might find tasks that should not happen immediately after another. In the video lesson, you have to move a task out so people are not walking all over wet cement. You could simply add a task in the project to represent the extra time, but that is one more task in the project. Instead, you can add lag to the task.
Lag allows you to adjust the time it takes between when one task starts and the other one finishes. You can also use negative lag to force a task to start before another one finishes.
Follow these steps to use lag in your project:
- Double-click a task that can start earlier or later than the predecessor relationship currently allows.
- The task information dialog appears. Click the predecessors tab.
- Type a lag (positive or negative).
- While still in the task information dialog, click the Notes tab and enter the reason for why you are using this relationship.
- Click the OK button.
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