developing workflow in asset management in utilities with user task

i am trying to develop a work flow in asset managemenent. i have looked all these links 

https://support.ptc.com/cs/help/thingworx_hc/converge_6.6_hc/index.jspx?id=Converge_ConfigUserTask&action=show

and 

http://support.ptc.com/cs/help/thingworx_hc/thingworxutil_7.3_hc/index.jspx?id=Converge_AssignMashupToUserTask&action=show

still confused on how to configure user task.

can anyone please help me with some examples or related tutorials.