....we have to acknowledge that ontology building is not the primary activity of knowledge workers but that vocabularies emerge in their daily work implicitly. Thus, we need to integrate work processes with ontology building processes. ... Building ontologies must be integrated with the users’ usual tasks, i.e., when using ontologies (e.g., for annotation, or navigation); necessary changes must be possible on demand and with low effort. This especially implies that we have no separate setup phase, but rather continuous maintenance.

Partly embedded into methodologies, editing tools like Protégé1 or KAON OIModeler [MMS03] are commonly used for ontology building. [...] Like the methodologies, these tools are not geared towards knowledge workers and their work processes and thus not task-embedded. Further, they consider ontology construction as an isolated and detached task. The evolutionary process, where the concepts are informal at first and yet not established, is not supported.