Thresholds

Use thresholds as a project management technique. You can create a threshold by selecting a parameter, such as start date variance; setting lower and upper values for the threshold; and applying the threshold to a specific work breakdown structure (WBS) element, or area, of your project plan.

When you define a threshold for a WBS element, you can specify the level of detail by which you want to monitor the WBS element. You can monitor the threshold at the activity level, and you can monitor the threshold at the WBS level. If you monitor a threshold at the activity level, issues are generated for each activity that violates the threshold. If you monitor a threshold at the WBS level, each activity contained in the specified WBS element is tested, and then all issues are summarized to the WBS element, rather than each activity.

After you define a threshold, you can monitor it to identify any issues associated with it. For example, you may set a threshold using the Total Float parameter. If the lower threshold value is 1d and the upper threshold value is 10d, an issue is generated for any activities that have a total float less than or equal to 1d or more than or equal to 10d. You can assign a person to be responsible for issues generated by the threshold. You can also specify threshold tracking layouts and assign priority levels to thresholds. A threshold's tracking layout assignment identifies the tracking layout that best displays the threshold problem area.