Ontology-based information in dynamic environments

A number of ontology based systems have been developed that support typical knowledge management tasks. At the moment almost all of these systems, however, rely on a number of assumptions about the nature of environment they are used in. In such an environment, a number of problems occur when trying to use ontology-based information and these are the following (1) changing information is the change in the set of information that should be accessible using an ontology; (2) changing ontologies are changes in the ontologies used to access information; and (3) changing sources or change of information sources making it impossible to establish a centralized ontology infrastructure that supports information sharing.