How do we run batch processes in Appian?

Can you give more details on requirement? If you want to schedule a process at specific time, you can use a timer event as trigger on start event.
See forum.appian.com/.../Start_Event_-_Timer.html

thanks for your comment Akshayan. I think that will solve my problem. Coming from a different BPM tool background, the terminologies were a little confusing:-)