Oracle Projects enables you to plan and track the effort and cost required to complete your project on time and under budget. You do this by carefully planning the quantity and cost required to complete each assignment and then tracking the progress of each assignment over the lifespan of the project. Planned effort, and cost associated to assignments roll up to contribute to the task effort and cost, which in turn roll up further to contribute to the overall effort and cost for the project workplan.

The system uses planned quantity values to calculate the planned cost for resource assignments. You can define planned quantity for each resource assignment in your project workplan structure. This enables you to track progress against planned assignment cost and effort as actual effort and cost is spent over the duration of the project. And it lets you adjust planned quantity and cost values for your quantity assignments.

Because effort is rolled up by resource classes, effort is only summarized when you use a planning resource list with resource classes enabled. When you use a planning resource list with resource classes enabled, each planning resource used in an assignment is associated with one of the available resource classes.

For more information about adding and defining resource assignments on tasks, see Creating Task Resource Assignments.