  Decision making whenever and wherever it is happened is key to organizations
success. In order to make correct decision, individuals, teams and
organizations need both knowledge management (to manage content) and
collaboration (to manage group processes) to make that more effective and
efficient. In this paper, we explain the knowledge management and collaboration
convergence. Then, we propose a formal description of mixed and multimodal
decision making (MDM) process where decision may be made by three possible
modes: individual, collective or hybrid. Finally, we explicit the MDM process
based on UML-G profile.
