Subscriber's Usable Hours – Subscriber's Usable Hours are the number of hours of advanced TV services, such as VOD and Timeshifting, that the subscriber has available for their use.

Configuration Management {System}

Content Management System (CMS)

Element Management System (EMS)

Home Subscriber Server

Initialization

Learning Management System (LMS)

Network Management System – (NMS)

On-Demand Management System

Optical Management System (OMS)

Subscriber Authorization System - (SAS)

XML-based Content Management System (CMS)