CPSC 689/602--Spring 1997
Computer-Supported Cooperative Work
Title: Experiences in the Use of a Media Space
Authors: Marilyn M. Mantei, Ronald M. Baecker, Abigail J. Sellen, W
illiam A. S. Buxton, and Thomas Milligan
Citation: ACM 1991
Reprinted in: Baecker, R.M, Readings in Groupware and Computer-Supported Cooperative Work, Morgan Kaufmann Publishers, San Francisco, 1993 , pp.803-808
CAVECAT: Computer audio Video Enhanced Collaboration And Telepresence.
This system uses centralized server, does it contradict to previous paper
that the distributed design is better?
- Media spaces define new methods of communication, with novel and unforseen
uses and potentialities. Communication through a media space is more than
an approximation of face-to-face communication- it has a richness and
complexity all its own.
- The effective realization of media spaces requires one to solve serious
architectural and implementation problems in distributed computing.
- Group working environments contain an enormously rich collection of
- Media spaces raise serious ethical issues such as those of surveillance
Mirror function is important and useful for users themselves to make sure
they are properly framed in the camera.
Some other problems similar to other "media spaces" applications are still
present here, such as system response time delays, sound localization.
Also, some more specific system problems such are audio levels and noise,
lighting and camera angels are inevitable.
Some social and psychological impacts: meetings between and within offices,
neighbors, public/private conversation, invisible interaction, gaze and eye
Some other interesting points:
- Control of discussion is needed because of no visual cue.
- Video image size is an important sign of the importance of the participant.
- Virtual distances are perceived different.
- Non-speech audio cues is helpful.
Report prepared by: Haowei Hsieh, Email: email@example.com
Discussion date: 04/04/97
Report date: 04/14/97