Which of the following factors influence the scheduling of internal processing activities?

The scheduling of internal processing activities is influenced by several factors, such as the control key, the activity elements, and the factory calendar. The control key is a parameter that defines the basic properties of an activity, such as whether it is internally or externally processed, whether it requires confirmation or not, and whether it is relevant for scheduling or not. The scheduling indicator in the control key determines whether an activity is included in scheduling or not. The activity elements are subordinate units of an activity that represent partial tasks or work packages. The relationships between activity elements define the logical sequence and dependencies of the partial tasks. The factory calendar is a parameter that defines the working days and holidays for a work center. The factory calendar affects the duration and dates of an activity that uses the work center. Reference:https://help.sap.com/doc/0f069b2e08b748f1b480d4c8b46c3c49/100/en-US/6a7a9f0a6e421014e10000000a174cb4.html