CLOCKWORK supports the reuse of simulation and modeling knowledge across and between engineering companies. Web-based knowledge management for collaborative engineering is focussed by the DFKI and an industrial partner: The DFKI and ELOTHERM (www.elotherm.de) use the modeling of maintenance reports from service engineers as a testbed for improving future designs.

Word-processor-based tabular and free-text reports are converted into a central XML repository, from which database-XML and CEDAR-HTML (enrich.open.ac.uk/cedar) versions are generated via XSLT stylesheets. The repository is modeled via Protégé (smi-web.stanford.edu/projects/protege) ontologies, from which RDF metadata are generated for a FRODO (www.dfki.uni-kl.de/frodo) retrieval and inference agent.

• CLOCKWORK supports team-level knowledge sharing by integrating work tools (in our case dynamical system simulation tools) with formal documents, informal discussions, and knowledge models
• CLOCKWORK supports effective knowledge reuse by retrieving rich representations of a design according to knowledge-level models of the domain and the design process
• CLOCKWORK supports cautious knowledge sharing via knowledge interfacing between `competitive-collaborating' companies