rs obviously a shorter waiting time before viewing. Internet video products and the accompanying media industry are clearly divided into two different target areas: Web broadcast (for example on-demand lectures) Video streaming on demand 5.4.3 INTERACTIVE CLASS Interactive class and background class are mainly intended for traditional Internet applica- tions like WWW, e-mail, Telnet, FTP and News. In both classes the resources are reserved End-to-end scope, delivery of on-demand mobile media Scope of 3GPP specifications Download Content creation process - Content production, Streaming editing and coding Application and media - Capture live events servers in the network Content aggregation - Content storage - Content management - Content delivery Media client in the terminal - Media reception - Media decoding Presentation and layout - Playback - Local storage (optional) Figure 5.8 Distribution of mobile media content. The C alternative is much more demanding than the B alternative, which can use time to reduce the bandwidth Services dynamically. Responsiveness of the interactive applications is ensured by the separation of interactive and background applications. When the end user, either a machine or a human, is online requesting data from remote equipment (e.g. a server), the interactive scheme applies. In a normal case the user is requesting information. During a common packet call a bursty sequence of datagrams is exchanged. This phenomenon is very important when developing a traffic model. Burstiness is an inherent feature of this class. Examples of human interaction with remote equipment are web browsing, e-learning, interactive e-mail and database retrieval. Server access is another application in this class, for example when several persons at different geographical locations play a game together supported by a game server. A third example is collaborative working, i.e. when several persons work together on the same object and exchange information on that object directly between their respective terminals.