Text Document

PSI: A Platform for Shared Interaction

Fulltext URI

Document type


Additional Information



Journal Title

Journal ISSN

Volume Title


Kluwer Academic Publishers, Dordrecht, The Netherlands


This paper presents an infrastructure to support the dynamic sharing of information across a range of cooperative environments The infrastructure builds upon the use of shared common spaces by using a distributed tuple space to provide information sharing at its base level The platform extends existing considerations of tuple spaces' by adding mechanisms to provide active support for sharing data elements. The- use of a tuple space moves away from previous models of distribution in cooperative systems that focus on the propagation of events to focus on active data sharing The use of data tuples allows the sharing of information to be independent of the information model allowing a wide range of applications and environments to be supported. The paper presents the infrastructure and shows how it can be used to support information sharing across a number of different forms of cooperative (System and application.


Palfreyman, Kevin; Rodden, Tom; Trevor, Jonathan (1999): PSI: A Platform for Shared Interaction. ECSCW 1999: Proceedings of the Sixth European Conference on Computer Supported Cooperative Work. DOI: 10.1007/0-306-47316-X_19. Kluwer Academic Publishers, Dordrecht, The Netherlands. ISBN: 978-0-306-47316-6. pp. 351-370. Full Papers. Copenhagen, Denmark. 12–16 September 1999