hellekin: When a user is active on the computer (producing input e.g., via the keyboard), the system SHOULD NOT interrupt that activity unless absolutely required by the system to protect the user's privacy, her integrity, the integrity of her current action, or the integrity of the system.
Otherwise, the system MUST wait for the user to become idle, or to switch back to the attention-hungry application before popping up a window or otherwise stealing focus from the user.
hellekin: When a user is active on the computer (producing input e.g., via the keyboard), the system SHOULD NOT interrupt that activity unless absolutely required by the system to protect the user's privacy, her integrity, the integrity of her current action, or the integrity of the system. Otherwise, the system MUST wait for the user to become idle, or to switch back to the attention-hungry application before popping up a window or otherwise stealing focus from the user.