This process provide a sample of multi instantiation feature.
It uses a multiInstantiator called SplitString you can find in the multiInstantiator contributions.
The use case is very simple :
An user enter a list of guest for his/her party then the system multi instantiate a task for each guest to send them a mail (simulated).
Have fun !
Repository URL : http://community.bonitasoft.com/project/multi-instantiation-sample