Duration Variance (task field)

Data Type    Duration

Entry Type    Calculated

Description    The Duration Variance field contains the difference between the baseline duration of a task and the total duration (current estimate) of a task.

How Calculated    The Duration Variance field contains "0 days" until the duration value varies from the baseline duration value, as shown in the Baseline Duration field. Project then calculates duration variance as follows:

Duration Variance = Duration - Baseline Duration

Best Uses    Add the Duration Variance field to a task sheet when you want to analyze whether your schedule is taking more or less time than originally planned.

Example    You set a baseline for your project three months ago, and you now want to review duration variances for the tasks. You add the Duration Variance field to the Task Sheet view to analyze the project's progress and performance to date.

Remarks    If the duration variance is a negative number, the task is scheduled to take less time than originally planned. If the duration variance is a positive number, the task is scheduled to take more time than planned. If the duration variance is zero, the task is taking exactly as much time as originally planned.

The Duration Variance field contains "0 days" until the duration value varies from the baseline duration value, as shown in the Baseline Duration field. You can set a baseline in the Set Baseline dialog box. This copies the current value for the scheduled Duration field into the corresponding Baseline Duration field.

You can use the Tracking Gantt view to see the duration variance shown graphically with Gantt bars.

Applies To: Project 2007, Project 2010, Project 2010 Standard, Project Professional 2013, Project 2013 Standard



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