Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	4b50
authors	Vera, A., Kvan, T., West, R. and Lai, S.
year	1998
title	Expertise, Collaboration and Bandwidth Usability of Groupware
source	Proceedings of ACM CHI 98 Conference on Human Factors in Computing Systems 1998 v.1 pp. 503-510
summary	This paper describes the results of a study evaluating the effects of computer mediation on collaboratively solving architectural design problems. Pairs of graduate design students were asked to work on a landscape architecture design problem via computer terminals. In one condition they were allowed to communicate with an electronic whiteboard and a chat-line while in the other, the chat-line was substituted with video-conferencing (real-time video and audio). The protocols were evaluated according to two models. First, they were coded according to the pattern of collaboration, distinguishing meta-planning, negotiation, evaluation, and individual work. No differences were found between the two groups when coded this way. The protocols were also coded in terms of the problem-solving content, distinguishing task-related exchanges, interface-related exchanges, low-level design exchanges, and high-level design exchanges. The results showed that in the bandwidth-limited chat-line condition, participants cut down task and interface-related as well as low-level design exchanges but attempted to maintain the same amount of high-level design exchanges. When the final designs were evaluated by professional architects, no differences were found between two conditions indicating that chat-line participants implicitly compensate for the narrower bandwidth interface.
keywords	Cognitive Models; Expertise; Collaboration; CSCW
series	other
last changed	2002/07/07 16:01

_id	581f
authors	Vera, A., Kvan, Th., West, R. and Lai, S.
year	1998
title	Expertise and collaborative design
source	CHI’98 Conference Proceedings. Los Angeles: ACM, 1998, pp. 503-510
summary	This paper describes the results of a study evaluating the effects of computer mediation on collaboratively solving architectural design problems. Pairs of graduate design students were asked to work on a landscape architecture design problem via computer terminals. In one condition they were allowed to communicate with an electronic whiteboard and a chat-line while in the other; the chat-line was substituted with video-conferencing (real-time video and audio). The protocols were evaluated according to two models. First; they were coded according to the pattern of collaboration; distinguishing meta-planning; negotiation; evaluation; and individual work. No differences were found between the two groups when coded this way. The protocols were also coded in terms of the problem-solving content; distinguishing task-related exchanges; interface-related exchanges; low-level design exchanges; and high-level design exchanges. The results showed that in the bandwidth-limited chat-line condition; participants cut down task and interface-related as well as low-level design exchanges but attempted to maintain the same amount of high-level design exchanges. When the final designs were evaluated by professional architects; no differences were found between two conditions indicating that chat-line participants implicitly compensate for the narrower bandwidth interface.
keywords	Cognitive Models; Expertise; Collaboration; CSCW
series	other
email
last changed	2002/11/15 18:29

_id	10f9
authors	Kvan, Th., West, R. and Vera, A.
year	1998
title	Tools and Channels of Communication
source	International Journal of Virtual Reality, 3:3, 1998, pp. 21-33
summary	This paper proposes a methodology to evaluate the effects of computer-mediated communication on collaboratively solving design problems. When setting up a virtual design community; choices must be made between a variety of tools; choices dictated by budget; bandwidth; ability and availability. How do you choose between the tools; which is useful and how will each affect the outcome of the design exchanges you plan? A commonly used method is to analyze the work done and to identify tools which support this type of work. In general; research on the effects of computer-mediation on collaborative work has concentrated mainly on social-psychological factors such as deindividuation and attitude polarization; and used qualitative methods. In contrast; we propose to examine the process of collaboration itself; focusing on separating those component processes which primarily involve individual work from those that involve genuine interaction. Extending the cognitive metaphor of the brain as a computer; we view collaboration in terms of a network process; and examine issues of control; coordination; and delegation to separate sub-processors. Through this methodology we attempt to separate the individual problem-solving component from the larger process of collaboration.
keywords	Expertise; Collaboration; Novice
series	journal paper
email
last changed	2002/11/15 18:29

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