當一個產品要上市量產前的企劃構思階段，其首要的關鍵就是滿足消費者個人的偏好與需求。本研究以消費者心理感受層面作為探討要點，欲從中求出鏈鋸組件色彩與意象的關連性。研究旨藉由感性工學及灰色理論來探求與搭配出迎合市場需求的色系。感性工學的定義是『將消費者對於產品所產生的感覺或意象予以具體化的一門技術』；而灰色理論分析則能藉由現有數據的分析來評比各組件間色彩搭配的權重關係。研究中結合著感性的心理層面考量與理性的技術科學，此可以應用於實際的產品或階段設計的概念上，藉以了解客戶的感覺和產品色彩間的關係，再承續其結果作為設計導向的參酌要素。最後，則藉由專家系統來預測人們心中對於色彩的意象感知，而其結果顯示專家系統的預測與實際調查後的數據相仿。

The key component of a product design in the planning phase is the design to satisfying customers' needs and preferences. Starting from satisfying customers' psychological needs, this study aims to explore the relation between form elements and colors of a chain-saw via the Kansei engineering and the grey system theory. Kansei engineering is defined as a technology for transforming customer's perception into design elements. The grey system theory can be used to estimate the weighting influence of color variation of every assembly on product's image. With integration of these techniques, design can fully understand what customers think and make right decision in designing a good product. Finally, a color expert system is proposed in consideration of designer's usage. To illustrate the functions of the proposed design expert system, an example of the development of new chin-saw is demonstrated.