Research in modelling the underlying process of team decision making (TDM) of organizational work teams is rare. The current trend of research in TDM suggests five possible reasons: (1) the preference for less time-consuming correlational approach; (2) the plethora interest in the development of high-fidelity simulations for cognitive modelling of cooperative work; (3) the wider concern for the catastrophic effects of erroneous decision under high stake and high risk situation; (4) the criterion problem for evaluating decisions for the group task at work and (5) the cease of social psychology as a major contributor to TDM. This article provides an integrated framework which is particularly suited for analysing enthnographical recordings of TDM. The framework aims to build a process model by decomposing and assembling TDM with main reference to the group theories of social psychology.