Workflow time management allows the prediction of eventually arising 
deadline violations and enables proactive initiation of evasive actions. 
This saves time, avoids compensation tasks and therefore decreases costs. 
Current time management approaches assume that communication with 
external tasks, which are enacted by the process, is conducted in a 
blocking or synchronous manner. As inter-organizational processes 
frequently communicate in a non-blocking manner we examined basic 
asynchronous communication patterns and provided a mapping for each pattern 
in order to use it for time management purposes.