A fuzzy ontology-based decision tool for concept selection to maintain consistency throughout design iterations

Liu, Yan; Chen, Xinru; Eckert, Claudia and Zhang, Xin (2024). A fuzzy ontology-based decision tool for concept selection to maintain consistency throughout design iterations. Journal of Mechanical Design, article no. MD-23-1539.

DOI: https://doi.org/10.1115/1.4065256

Abstract

Concept selection is one of the most important activities in new product development processes in that it greatly influences the direction of subsequent design activities. As a complex multiple-criteria decision-making problem, it often requires iterations before reaching the final decision where each selection is based on previous selection results. Reusing key decision elements ensures decision consistency between iterations and improves decision efficiency. To support this reuse, this paper proposes a fuzzy ontology-based decision tool for concept selection. It models the key decision elements and their relations in an ontological way and scores the concepts using weighted fuzzy TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution). By applying the tool to an example, this paper demonstrates how the concepts, criteria, weights and results generated for one decision can be reused in the next iteration.

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