| # Workflow Attribute Mode not mandatory The workflow attribute can be empty before starting the activity and can be empty at the end of the activity. mandatory on input The workflow attribute must have a value before the activity can be started. At the end of the activity the attribute can be empty. mandatory on output The workflow attribute can be empty when you start the activity. However, when the activity ends the workflow attribute must have a value. mandatory on both The workflow attribute must have a value before the activity can be started. The workflow attribute must still contain a value (not necessarily the same as with which the activity was started) at the end of the activity. |