Abstract
Design rationale (DR) is an important part of design knowledge. Effective reuse of DR depends on its successful retrieval. In this paper, an approach for structured DR retrieval using ontology-aided indexing is presented. Firstly, an ontology-based semantic model of DR is developed based on the extended IBIS-based DR representation in order to effectively utilise the semantics embedded in DR. Then, an ontology-aided indexing method is proposed to build indexes for DR records to index the semantic concepts and relationships in DR. Furthermore, three kinds of query modes are developed to support flexible querying, among which natural language input query and DR record-based query have much more semantics and thus lead to better retrieval results. Finally, a prototype system is implemented. Experimental results show the effectiveness of the proposed approach.
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