The Estimate to Complete (ETC) is the estimated time for a resource to complete an assignment. This value is important for both project planning and revenue recognition. In the short run, estimates help project managers more effectively allocate work hours. In the long run, project managers can compare estimates to actuals, which can help produce more accurate forecasting and planning.
Important! You must assign staff to tasks before you can generate, view, and edit estimates.
After you assign staff to tasks, the Estimated Time to Complete (ETC) is automatically generated for the task. The ETC is based on the number of working days the resource is assigned to the task, and the resource's availability in working hours.
You can view and define the ETC for an individual task on the Task Estimating Properties page. The task's ETC amount is calculated every time you assign a staff member to a task. ETC is based on the following formula:
ETC = the number of working days the resource is assigned to work on the task * the number of hours each day that the resource is available for work
The resource's calendar and the resource's daily availability value is used to determine resource availability. Unless you define a different number in the resource's profile, 8 hours of daily available work time is assumed for each resource (the default availability number is 8). So if a task scheduled between 6/30/09 and 7/30/09 contains 22 working days and has one resource assigned to it for 8 hours a day for all 22 days, then the ETC for this task is listed at 176 hours (22 days * 8 hours each day). If two resources were assigned to this task (each with a total daily availability of 8 hours), one for 50% of his available time and the other for 100%, then the combined ETC is calculated at 264.
Note: See the Resource Management User Guide for more information.
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