The application of knowledge management principles in healthcare environment gained much attention over the last years. Daily activity of Healthcare providers and organizations requires that large amount of knowledge to be search, gathered, shared and stored. Knowledge management operations are complex and variable, but there is an agreement regarding the need of identifying critical knowledge as the first step of the procedure.
Knowledge map or knowledge trees follows mathematic, philosophic and social principles and provide a very useful graphic representation of the existing knowledge inside the organizations. We employed a classical structure, with knowledge in the center, and questions as the first topic of the different branches: what, why, who, where, how and when.