关键词: 设计调研, 知识计量, 设计知识单元, 设计前期, 知识图谱

Abstract: To assist designers in scientific design decision-making under the background of big data,a survey method was constructed to understand the design trend by the map of knowledge measurement.The processes of multi-level information collection,ordering,measurement and map interpretation were proposed with the analysis of requirements in the early stage of fuzzy front of the design.The knowledge units' differences among the product design cases,the literature and the terms were compared.The isomerization knowledge directly related to product design sources were analyzed,and the fragmented information was collected and stored.After building the frameworks of knowledge unit of the product design case,the content was formed by information fusion on both the product and feature levels.The key measures of knowledge units were extracted for the statistical analysis to form 3 aspects of the survey.The high impact products were inspected by testing the reaction of users and experts.The hot areas of design were determined by the keywords that were extracted from the product description and the user evaluation respectively.The expansion words were selected from the candidate of the hot words to detect the changing trend of design.The method was verified by the survey of vertical category of aromatherapy machine,and the design trends of subdivision field were obtained objectively.

Key words: design survey, knowledge measurement, design knowledge unit, pre-design, knowledge map