Priority

A priority level for an inactive process that does not require attention. This keeps frequently used functionality of the process readily available. For example, a stopped media player.

A priority level for an active process that does not require attention. This priority level can be used for frequently used functionality that does not require immediate attention. For example, a media player that is playing music, to let the user always be able to control playback.

A priority level for an active process that requires immediate or frequent attention, such as a phone call.