Overlay technology space map for analyzing design knowledge base of a technology domain: the case of hybrid electric vehicles
2019
A tangible understanding of the latent
design knowledgebase of a technology domain, i.e., the set of technologies and related
design knowledgeused to solve the specific problems of a domain, and how it evolves, can guide engineering design efforts in that domain. However, methods for extracting, analyzing and understanding the structure and evolutionary trajectories of a domain’s accumulated
design knowledgebase are still underdeveloped. This study introduces a network-based methodology for visualizing and analyzing the structure and expansion trajectories of the
design knowledgebase of a given technology domain. The methodology is centered on overlaying the total technology space, represented as a network of all known technologies based on patent data, with the specific knowledge positions and estimated
expansion pathsof a specific domain as a subgraph of the total network. We demonstrate the methodology via a case study of hybrid electric vehicles. The methodology may help designers understand the
technology evolutiontrajectories of their domain and suggest next design opportunities or directions.
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