This paper describes practical design and implementation experiences g
ained when creating Group Support Systems (GSS) in a networked persona
l computer environment. Examples of GSS based on the shared context mo
del and implemented using C, C++, and Actor languages are presented. G
raphical user interfaces and multitasking extend traditional methods f
or supporting group work. An object-oriented communication system is i
ntroduced comprised of objects that provide support for all inter- and
intraprocessor communications between the GSS applications. Multiple
levels of data service are provided to maintain shared data, coordinat
e user views, and transmit cursor positions in a convenient and effici
ent manner. The applications presented not only demonstrate the viabil
ity of implementing GSS on personal computer-based systems, but also s
how the ability to develop complex applications in different programmi
ng environments that make use of common routines. The unique propertie
s of the object-oriented paradigm greatly facilitate the creation and
use of Group Support Systems.