The ability to perform a pre-defined set of utilization functions on a content item. These utilization functions are the permissions (e.g., to view/hear, copy, modify, record, excerpt, sample, translate in another language, keep for a certain period, distribute.), constraints (e.g., pay/view/hear multiple times, play/view/hear certain number of hours), and obligations (e.g., payment, tracking, information) that apply to the content and the provide liberty of use granted to the end-user.