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This paper describes a platform that helps industrial domain experts to preserve the connection between textual sources and formalized business rules by using lexicalized ontologies both for links and for storage of the conceptual knowledge. Business Rules Management Systems (BRMSs) are used to update and query business rules of an automotive use case. They rely strongly on domain ontologies, which model the business knowledge and provide a conceptual vocabulary for the formalization of the rules that are expressed in written policies. We show that lexicalized ontologies are a key component of such BRMSs and how such knowledge can be encoded. Our proposed solution supports domain experts in the automotive industry in understanding and maintaining their business rules by presenting the relevant source documents that were used to create the ontological concepts. The use case is based on a car development scenario that models the connection between car testing scenarios, e.g., safety tests, and the methods and tools used to analyze and prepare these tests. The intended solution has been developed in the ONTORULE project and is still work in progress.

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Modular ontology management tries to overcome the disadvantages of large ontologies regarding reuse and performance. A possibility for the formalization of the various combinations are variability models, which originate from the software product line domain. Similar to that domain, knowledge models can then be individualized for a specific application through selection and exclusion of modules. However, the ontology repository as well as the requirements of the domain are not stable over time. A process is needed, that enables knowledge engineers and domain experts to adapt the principles of version and change management to the domain of modular ontology management. In this paper, we define the existing change scenarios and provide support for keeping the repository, the variability model and also the configurations consistent using Semantic Web technologies. The approach is presented with a use case from the enterprise architecture domain as running example.