need to create a demo process with some tasks, users

[activiti-admin]

pls explain how i should go about creating a demo process with some tasks, users?

also i created a diagram using the Modeler - KK_Process_A.bpmn20 - XML Document
– how do i use this in my project ?

regards..

[tombaeyens]

http://activiti.org/userguide/index.html#10minutetutorial