A comparison of application sharing mechanisms in real-time desktop conferencing systems

  • Authors:
  • S. R. Ahuja;J. R. Ensor;S. E. Lucco

  • Affiliations:
  • AT&T Bell Laboratories, Holmdel, NJ;AT&T Bell Laboratories, Holmdel, NJ;AT&T Bell Laboratories, Holmdel, NJ

  • Venue:
  • COCS '90 Proceedings of the ACM SIGOIS and IEEE CS TC-OA conference on Office information systems
  • Year:
  • 1990

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Abstract

Desktop conferencing is a term used to describe real-time, computer-based conferences in which users may share data through their personal computers. In these conferences, the participants may access user-level programs, called application programs, which produce common displays (screens or windows) on their computers. Because each participant may give input to the application program and sees its resulting output as though the program were executing on his or her local computer, these applications retain their own look and feel as they form a shared environment for the conference. We compare some methods of sharing application programs during real-time, computer-based conferencing. In particular, we have explored different methods in three versions of Rapport, a multimedia conferencing system. We examine the qualitative and quantitative differences of these implementations using some typical shared applications and find that one method possesses good semantic characteristics as well as good performance in several network environments.