The lack of conceptual frameworks available for integrating research o
n organizational computer-based communication technologies is document
ed. An integrated model for studying communication support phenomena i
n organizations is formalized from a knowledge management perspective
using set-theoretic notation. Key constructs for understanding and exp
loring communication support systems me identified, such as knowledge
workers, knowledge management activities, communicate-abilities, and k
nowledge management episodes. The implications associated with the ide
ntification and formaIization of each of the foregoing constructs is d
iscussed and further research avenues are explored. The model provides
researchers and system deveIopers with a means of studying both human
and computer-based knowledge workers in organizations. Two types of c
ommunication support systems are defined.