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This study has the objective to present an intersection proposal among the master degree research subjects of the authors of paper: 1) taxonomy, 2) folksonomy, 3) accessibility and 4) usability, in the field of the knowledge organization. In the context of information science, the classification theory with Ranganathan and the concept theory, developed by Dahlberg by principles of the terminology theory, provide the theoretical and methodological base to support the "unit of representation" issue. The theoretical-methodological grounding to identify the mentioned intersection is based in Vickery’s thought that affirms the importance of the knowledge representation and arrangement in computational environments. The information recovery systems provide access to information contents that must happen in physical and also intellectual way. In that context, the instruments such as the taxonomy and the folksonomy are considered, which developed through attributes of accessibility can contribute for the effective use. From this, it still discuss the notion of usability in the field of the organization and information use.

Due to the use of portals as important vehicles for communication and information, this article comes to report the internal experience of internal developing corporate portal in a university hospital, by analogy with the processes of analysis, synthesis and representation of the information, as well as the achieved benefits and the perspectives for the promotion of the management of the information and the learning organization. The article is divided in three topics. The first discusses the process of information management and learning organization, emphasizing the influence and contributions of information technology. The second describes the process of analysis, with information collection, synthesis, setting goals and planning, and representation of information, which resulted in the development of the portal. And finally will present the benefits and the evolution perspectives this portal, as well as the strength of organizational culture and the person in this context.

The knowledge management uses a set of methods, techniques and tools to systematize and share knowledge and to make the environment propitious for generation, appropriation and use of knowledge. Conceptual maps are one of the knowledge management tools. These maps show what knowledge the organization has, who create it, in what way it is created and how this knowledge can be used by the organization. Thus, this research tried to understand knowledge importance at organizations environment and also the use of conceptual maps at this environment. After, it will be created a conceptual map to visualize the organizational knowledge in the Information Science Department at Sao Paulo State University, Brazil. The concepts to build the map will be extracted from the department teachers using the Delphi Method.