REAL TIME GROUPWARE AS A DISTRIBUTED SYSTEM: CONCURRENCY CONTROL AND ITS EFFECT ON THE INTERFACE
Date
1994-02-01
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Abstract
This paper exposes the concurrency control problems that
occur when groupware is implemented as a distributed
system. Traditional concurrency control methods cannot be
applied directly to groupware because system interactions
includes people as well as computers. Methods, such as
locking, serialization, and their degree of optimism, are
shown to have quite different impacts on the interface and
how operations are displayed and perceived by group members.
The paper considers both human and technical considerations that
designers should ponder before choosing a particular concurrency
control method. It also reviews our work-in-progress designing
and implementing a library of concurrency schemes in GroupKit, a
groupware toolkit.
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Computer Science