Data Type Yes/No (Yes/No field: A type of field with content set to either Yes or No; also known as a Boolean field or a True/False field. For example, the Recurring field indicates whether the task is a recurring task.)
Entry Type Entered (entered field: A field in which you may type or edit information. This is in contrast with a calculated field, in which Project calculates and enters information.)
Description The Effort Driven field indicates whether the scheduling for the task is effort driven scheduling. When a task is effort driven, Project keeps the total task work at its current value, regardless of how many resources are assigned to the task. When new resources are assigned, remaining work is distributed to them.
Best Uses Add the Effort Driven field to a task sheet when you want to set whether tasks are effort driven or resource driven directly on that sheet. If you want the same duration to be scheduled regardless of the number of resources assigned to the task, click No in the Effort Driven field. If you want the duration to be dependent on the availability and effort of the assigned resources, click Yes in this field.
Example You have a task to create a set of architectural drawings with a duration of four weeks, which is how long the task would take one drafter to complete. Because the task is effort driven, you assign four drafters to the task and Project will schedule the task to be completed in one week. In this case, you click Yes in the Effort Driven field.
Later on, you schedule one week for client review of the drawings. Because you want one week scheduled regardless of how many clients review the drawings, you click No in the Effort Driven field.
Remarks You can set whether a task is effort driven in the Task Information dialog box.
You can also set the default for all newly created tasks in the Project Options dialog box.