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VRML '97 Proceedings of the second symposium on Virtual reality modeling language
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Component framework infrastructure for virtual environments
Proceedings of the third international conference on Collaborative virtual environments
NESSIE: an awareness environment for cooperative settings
Proceedings of the Sixth European conference on Computer supported cooperative work
Contigra: an XML-based architecture for component-oriented 3D applications
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CLIHC '05 Proceedings of the 2005 Latin American conference on Human-computer interaction
SSIML/Components: a visual language for the abstract specification of 3D components
Proceedings of the eleventh international conference on 3D web technology
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Presence: Teleoperators and Virtual Environments
Designing interaction protocols using noughts and crosses type games
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Presence: Teleoperators and Virtual Environments
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Transactions on Edutainment III
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The design of a Virtual Environment (VE) is a distributed problem of multi-user access to shared resources. Such problem requires careful design decisions in order to provide a seamless system infrastructure capable of supporting flexible interactions in the shared scenarios.The complexity of this domain has led to intricate software systems that provide ad-hoc solutions to specific problems. Furthermore, many of them have gone to a dead end, due to their non-extensible design and their lack of code and module reuse.This paper presents a VE that is constructed on top of a component groupware framework. Our major aim is to provide an extensible infrastructure offering a set of collaborative services in a seamless way. At the conceptual level, it provides essential collaborative services: shared sessions, support for synchronous and asynchronous components, security, coordination, and a server-side awareness infrastructure. At the architectural level, the framework is constructed on top of a middleware integration platform and uses high performance publish/subscribe notification services. Finally, we present the advantages and limitations of this approach.