Workflow Role administrator for credit card progrram

5-39 of the set up credit card program chapter in the payables manual mentions "Administrator. The employee or workflow role that will act as administrator for the credit card program". I am assuming this is user management functionality, but it does not mention anything else or point me to anything useful. Using a single name as administrator is not (I am guessing) practical for the long term, however, fine for testing.Can anyone point me in the right direction