Previous Topic: Edit Task PropertiesNext Topic: Set the Default Earned Value Options (Tasks)

Scheduling (projects) › How to Edit Tasks › Edit Task Duration in the Gantt Chart

Edit Task Duration in the Gantt Chart

The task duration on the Gantt view represents the number of working days between the Start date and Finish date of a task. The duration is auto calculated based on the task Start and Finish dates after you save. You can edit the task duration on the Gantt view. This helps project managers to schedule tasks based on the task duration and not only the task start and finish dates.

The following table shows the interactive changes that you see when you edit the task attributes on the Gantt view:

Field Edited

Result

Task Duration

The task Finish Date and the Gantt bar change.

Task Finish Date

The task Duration changes.

Task Start Date

The task Finish Date changes without impacting the task duration.

However, you cannot edit the task duration in the following cases:

The Gantt bar on the Gantt view represents a task schedule, that is, the Start date and Finish date. The task duration changes on modifying the Gantt bar on the Time Scale. The duration changes only if you configure the Gantt bar to display the task schedule. If the Gantt bar is configured to display other attributes, modifying the Gantt bar does not change the task duration.

After you install or upgrade to release 13.3, the Allow Grid Editing check box appears as selected by default for all the task views. If the PMO Accelerator is installed, perform the following steps after upgrade:

Follow these steps:

  1. Open Administration, and from Studio, click Add-Ins.
  2. Click Accelerator: Program Management Office.
  3. Search for Gantt List View in the list.
  4. Select the check box and click Apply.

    The status changes from Upgrade Ready to Installed and the Allow Grid Editing check box is selected.

    Note: You can edit the task duration only in the Gantt view even if this check box is selected for a non-Gantt view.

The following table explains the behavior on changing the task duration to a decimal value. For example, change the task duration to 1.2, 1.35, or 1.99.

CA Clarity PPM
  • The task Duration is rounded off to 1, 1, or 2.
  • The task Finish Date increments or decrements accordingly.

Microsoft Project
  • No changes to the task Duration. The values are 1.2, 1.35, or 1.99.
  • The task Finish Date moves to the next working day.
  • The task Start, Finish, and Duration do not change on saving the project back to CA Clarity. The same values are saved back to CA Clarity, provided the Duration field in CA Clarity PPM is configured to display the decimal values. That is, 1.2, 1.35, or 1.99 respectively.

Open Workbench
  • The task Duration is rounded off to 1, 1, or 2.
  • The task Finish Date increments or decrements accordingly.
  • The task Start, Finish, and Duration do not change on saving the project back to CA Clarity. The same values are saved back to Clarity, that is, 1, 1, or 2 respectively.

Note: The duration is calculated based on the base calendar. Any exceptions in the base calendar automatically affect the duration value.