for Organizational Activity Support The modern business world is characterized by dynamic markets and contin-uous technological advances. To cope with these trends, organizations must become more flexible. The knowledge, considered as a new factor of produc-tion, becomes a key element in business processes. In the last few years, the enterprises awareness about the worth of a correct knowledge management is grown exponentially. The use of Knowledge Management tools within the organization is became a best practice. The knowledge, additionally, is strictly linked to the capability to per-form effective actions. Who knows is able to make a correct decision and to act consequently. Making decisions concerning complex systems (e.g., the management of organizational activities, industrial processes or the control of robotic device in complex environment etc...) often is a task that exceeds human cognitive capabilities. This is because many variables of the system