of hierarchical Session Management, allowing for arbitrarily nested groups and multi-conferencing. Within the given platform Users can be individuals as well as technical devices, e.g. a streaming framework. The ProViT scenario builds a collaborative environment for interactive distributed VR Design reviews

MediaWare is a distributed multimedia environment based on state-of-the-art distributed object computing standards as speci ed by CORBA. MediaWare enhances interoperability among media objects through the interoperable virtual connection protocol. MediaWare provides an infrastructure for building

We refer to a multimedia environment, consisting of workstations and servers connected by a network dealing with video and audio streams. These streams require Real-Time (RT) handling. Fortunately the requirements are not so demanding as those in Hard Real Time (HRT) systems. Therefore resources

This paper describes our model and the work that will be done to implement it. First the scheduling model will be described which we apply to the local processor (machine). 2 Scheduling

: Quality of Service (QoS) requires standardization to achieve some consistency in terminology, models and mechanisms to operate successfully in an open distributed environment. This paper embraces this standardization effort and addresses the QoS issue from an ODP perspective. The objective

This paper presents a secure (tamper-resistant) algorithm for watermarking images, and a methodology for digital watermarking that may be generalized to audio, video, and multimedia data. We advocate that a watermark should be constructed as an independent and identically distributed (i

Three experimental environments traditionally support network and distributed systems research: network emulators, network simulators, and live networks. The continued use of multiple approaches highlights both the value and inadequacy of each. Netbed, a descendant of Emulab, provides

: Reasoning about knowledge seems to play a fundamental role in distributed systems. Indeed, such reasoning is a central part of the informal intuitive arguments used in the design of distributed protocols. Communication in a distributed system can be viewed as the act of transforming the system

;quot;close " to the requesting node. Unfortunately, it is not clear how to efficiently achieve this goal in a dynamic, distributed environment in which large numbers of objects are continuously being created, replicated, and destroyed. In this paper

Coda is a file system for a large-scale distributed computing environment composed of Unix workstations. It provides resiliency to server and network failures through the use of two distinct but complementary mechanisms. One mechanism, server replication,stores copies of a file at multiple