Weak current College】 【VOD's basic business functions】.

<br> <br> In General, VOD business must have the following features: <br> * Download <br> User terminal will give the current domestic non-intelligent television provides intelligent. Due to economic factors, many of the user's Terminal is .used set-top box, instead of the computer. And the General set-top boxes with hard disk is not prepared. This means that only a small part of *** for system can be stored in a set-top box of ROM or .EPROM. The required function environment, along with the download with the application. * Navigation <br> Users will need a friendly interface to multiple business choices. An intelligent navigation system can be programmed with memory and storage capacity of the choice, while at the .same time it also recommended to the user. * Access to certified <br> Today, many television system by notice to pay. In future, interactive environment, almost all of the bulletins are omitted, so that access the billing will be confirmed only on .the delivery of new business for billing of effectively, can receive. * User customization <br> User-customized selection by offering to user defined auto logon mode, determine the language, business, navigation systems or service provider. * The user authentication / authorization .<br> User terminal designed three users directory: managers, users, and anonymous users. Managers on the user terminal equipment in General is responsible for and shall have the right to confer, deprivation or change user permissions for each business. Users will be able .to use their authorized any application and customize their business environment. Anonymous access is used primarily for announcements. * Billing / encryption <br> From a user perspective, all the business should have only a single Bill. Considering that home shopping and home banking, .you must have advanced encryption tools. * Content <br> VOD content does not exist, because there is a wide range of materials such as old movies or TV shows. But because of the license, copyright and other issues, these content access is sometimes .very slow. * Internet access <br> New business must be able to combine the characteristics of the Internet application and meet the underlying needs, such as Internet protocol encapsulation and IP-to-ATM address translation. <br>.