You must associate a task type with each task. The task type contains a variety of default detail information for the task, such as the initial task status, the initial task progress status, and information relating to work quantity planning. The task type also determines how progress is collected for the task.

When you select a task and create new peer or subtasks for that task, the initial task type of the new task is inherited from the selected task.

Because you cannot summarize effort by resource classes when you select a planning resource list with resource classes disabled, you can select or change the physical percent complete derivation method to any method other than Effort.

For more information about task types, see: Task Types, Oracle Projects Implementation Guide.