Proceedings of the fourth symposium on Virtual reality …, Jan 1, 1999
VRML is a file format for the description of dynamic scene graphs containing 3D objects with thei... more VRML is a file format for the description of dynamic scene graphs containing 3D objects with their visual appearance, multimedia content, an event model, and scripting capabilities. It is designed to be used on the Internet and on local system and to be used as an exchange file format. Although equipped with sophisticated techniques for user interaction the current VRML standard still lacks direct support for sharing virtual worlds that can not only be visited but also manipulated by multiple users distributed over the network. Several multi-user technologies have been developed in the past and some use VRML as the rendering and interaction vehicle. This paper gives a short review of design considerations for distributed virtual environments and approaches taken so far in the development of multi-user technologies. We present the design and implementation of VIRTUS, a multi-user platform that allows multiple geographically separated users to enter and manipulate shared VRML scenes.
The Transaction Concept: Virtues and Limitations (Invited Paper)
A transaction is a transformation of state which has the properties of atomicity (all or nothing)... more A transaction is a transformation of state which has the properties of atomicity (all or nothing), durability (effects survive failures) and consistency (a correct transformation) The transaction concept is key to the structuring of data management applications The concept may have applicability to programming systems in general This paper restates the transaction concepts and attempts to put several implementation approaches in perspective It then describes some areas which require further study: (1) the integration of the transaction concept with the notion of abstract data type, (2) some techniques to allow transactions to be composed of subtransactions, and (3) handling transactions which last for extremely long times (days or months)
... Chicago, London. University of Chicago Press, 1970. 401 Page 13. BIBLIOGRAPHY Dumont, J. Chr.... more ... Chicago, London. University of Chicago Press, 1970. 401 Page 13. BIBLIOGRAPHY Dumont, J. Chr. "La strategie de l'esclave Plautinien," REL 44 (1966) pp. 203-12. Duva, N., H.-G. Pflaum. Editors. L'onomastique latine. Paris. Centre national de la recherche, 1977. ...
Proceedings of the fourth symposium on Virtual reality …, Jan 1, 1999
VRML is a file format for the description of dynamic scene graphs containing 3D objects with thei... more VRML is a file format for the description of dynamic scene graphs containing 3D objects with their visual appearance, multimedia content, an event model, and scripting capabilities. It is designed to be used on the Internet and on local system and to be used as an exchange file format. Although equipped with sophisticated techniques for user interaction the current VRML standard still lacks direct support for sharing virtual worlds that can not only be visited but also manipulated by multiple users distributed over the network. Several multi-user technologies have been developed in the past and some use VRML as the rendering and interaction vehicle. This paper gives a short review of design considerations for distributed virtual environments and approaches taken so far in the development of multi-user technologies. We present the design and implementation of VIRTUS, a multi-user platform that allows multiple geographically separated users to enter and manipulate shared VRML scenes.
The Transaction Concept: Virtues and Limitations (Invited Paper)
A transaction is a transformation of state which has the properties of atomicity (all or nothing)... more A transaction is a transformation of state which has the properties of atomicity (all or nothing), durability (effects survive failures) and consistency (a correct transformation) The transaction concept is key to the structuring of data management applications The concept may have applicability to programming systems in general This paper restates the transaction concepts and attempts to put several implementation approaches in perspective It then describes some areas which require further study: (1) the integration of the transaction concept with the notion of abstract data type, (2) some techniques to allow transactions to be composed of subtransactions, and (3) handling transactions which last for extremely long times (days or months)
... Chicago, London. University of Chicago Press, 1970. 401 Page 13. BIBLIOGRAPHY Dumont, J. Chr.... more ... Chicago, London. University of Chicago Press, 1970. 401 Page 13. BIBLIOGRAPHY Dumont, J. Chr. "La strategie de l'esclave Plautinien," REL 44 (1966) pp. 203-12. Duva, N., H.-G. Pflaum. Editors. L'onomastique latine. Paris. Centre national de la recherche, 1977. ...
Uploads
Papers by Andrea Vistue