Actually what I need is to invoke a process automatic every 3 minutes
P1 is the process you want to invoke every 3 minutes
create a process named P2.
In the process P2:
1. add a Sub Process activity and define to invoke P1.
2. add a Wait Point activity and set 3 minutes.
3. connect the route back to sub process (just make a loop)
now invoke the process P2 manually (by right click, then Invoke) within workbench.
Your P1 will get invoked by the helper process P1 every 3 minutes.
Thank you so much for your answer. I was thinking the same way but I thought may be I can set something from the adminui to invoke the process.
You can write a java application to run the main process automatically if do not wish to invoke it manually.
Have a look at http://www.ibm.com/developerworks/java/library/j-schedule.html, this provides scheduler library which you can use to invoke your java program
which in turn invokes your livecycle process.