This exercise needs to be done internally. No other firm's roles and responsibilities of staff can be made applicable/ adaptable to that of your organisation as the same would create lot of barriers for the staff to perform in their present service conditions.
I hope my response is clear to you. You may either do it in your training session or engage a trainer to prepare a draft based on the similar exercise and compilation of data.
6th August 2018 From India, Madras