Hi Rahat,
You can use the same form and enable/disable some fields according to the user's role with only little scripting. Review the steps the below:
1-First place a hidden field ("user_role") in your form
2-Insert a script object into your form onder "Variables" in object hierarchy and write a script for enabling/disabling the fields (regarding the value of "user_role")
3-On the initialize and change events of the "user_role" call your script object
4-On your process design, put a SetValue service before User tasks. In the asssignment you should set the desired user_role to the form, so that the script is triggered in your form and the fields are enabled/desiabled
Fro further needs on your form or process design you can contact us from:
http://www.kgc.com.tr/company_Contact.htmlOguz
http://www.kgc.com.tr