A Bird's Eye View
Topic Maps is a way to describe information from outside. The knowledge base that it creates is independent of the information source. Topics point to specific locations in documents, databases, spreadsheets. Several methods can be used to extract automatically knowledge from various sources. It is also possible to define manually the topics when needed. Therefore, Topics maps is an ideal way to integrate various data sets together, without interfering with the way these data sets are created and maintained.
Topic Maps can be created dynamically, and be refreshed each time anything changes in the information sources to which it points.