J.S. Sventek. An architecture for supporting multi-media integration. In Proc. IEEE Comput. Soc. Office Automat. Symp., April 1987.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....methods which are procedures that implement operations defined on an object. A request to perform an operation on an object is accomplished by sending a message to the object, i.e. a method invocation. Several multimedia system models have been proposed in recent years [BCG 90, Mas87, LG90b, Sve87] A typical multimedia information system consists of four modules: user interface, object composition manager, database management system, and media managers. Figure 1 depicts the system architecture of a multimedia information system. The user interface provides the query or browsing facilities ....

J.S. Sventek. An architecture for supporting multi-media integration. In Proc. IEEE Comput. Soc. Office Automat. Symp., April 1987.

.... heavily complicate the issue of multimedia traffic integration [Kle90] LG90b] Generally, there are three levels of integration possible for the provision of multimedia services in an integrated environment, i.e. the human interface, the service interface and the media interface [Sve87]. At the human interface level, the integration process consists of presentation and interaction with the user through multiple and distinct input output (I O) interfaces. Different services, i.e. classes of traffic, are carried via separate (sub)networks with synchronization facilities provided ....

Sventek, J.S.,"An Architecture for Supporting Multi-Media Integration," in Proceedings of IEEE Comp. Soc. Office Automation Group, pp. 46 - 56, April 1987.

....In addition to memory size limitations, the effect of buffering on total delay cannot be ignored. This is significant for many applications which involve live streams such as telephony and video conferencing. In these cases a degree of interactivity occurs between the communicants in real time [Sventek87] This may be quantified by the delay between data being issued by one party before the other has an opportunity to reply [Nicolaou90b] There exist thresholds for delay above which the level of interactivity between users in these applications is impaired. The ISLAND project found that values ....

....which can be used to ensure that inter stream relationships are maintained during transport is known as interleaving. This works by multiplexing data from each related stream to form an aggregate stream. In essence, this data is grouped to indicate a simultaneous presentation requirement [Sventek87] This aggregate stream is sent over an order preserving communications channel from source to sink as illustrated in Figure 3.1. This could be implemented using a single 1 Information supplied by G. J. Stark of the University of Cambridge Computer Laboratory. 34 transport level virtual ....

J. S. Sventek. An Architecture Supporting Multi-Media Integration. Technical Report AO.33.02, Advanced Networked Systems Architecture (ANSA), January 1987. (pp 11, 34)

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J.S. Sventek, "An Architecture Supporting Multi-media Integration", Proc. IEEE Comp. Soc. OfficeAutomation# Symp., April 1987, pp 46-56.

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