Knowledge Visualization can be a valuable support for facilitating a number of cognitive and collaborative tasks in organizations. The aim of this paper is to provide concrete evidence of how visual templates provide useful support for teams, which lead to higher quality of idea generation and sharing, compared to unstructured meetings. Evidence is provided through the illustration of a field study conducted in a multinational telecommunication company and a series of laboratory experiments. Results show that visually structuring meetings improves the number of high quality ideas developed, and increased knowledge shared and remembered.

Ontologies are being used nowadays in many areas, including bioinformatics. To assist users in developing and maintaining ontologies a number of tools have been developed. In this paper we compare four such tools, Protégé-2000, Chimaera, DAG-Edit and OilEd. As test ontologies we have used ontologies from the Gene Ontology Consortium. No system is preferred in all situations, but each system has its own strengths and weaknesses.