Manipulate process's data manually
There could be a administrative way to change the process's data manually.
Sometimes a process has problems (like a wrong validation) that causes errors in tasks. While we don't fix that, there could be a way for an admin user to fix those "data problems" manually so that the process could go forward. In a real production environment that is "really" needed, because we can't stop the enterprise because of a "bug in a system".