情感豐富我們的生活體驗，成功的情感設計會增加產品的吸引力，吸引使用者的不再止於產品的「功能」，而是「情感」。設計師擅長透過產品外觀來影響使用者的情感，引發各種不同的情緒感受，但外觀大部分取決於設計師的直覺和喜好，以預測使用者的感受，但實際感受往往要等到投入市場後才能知道。設計師能否成功引起預期中使用者的情感反應？過去的研究顯示，設計師的意圖和使用者的感知存在差異，若多數使用者的情感反應與預期不同，稱為「情感的不連續性」，導致須重新設計產品，轉化使用者情感需求，對設計師來說是一大挑戰。
本研究目的是建立評估方法，了解設計師讓產品乘載的情感意圖和使用者感受之間的差異，以測量情感連續性。過去的研究比較了設計師及使用者的差異，以一群資深設計師為代表，預測產品的設計意圖，並以產品圖像為刺激物，分別量測設計師與使用者的情感反應。而本研究則以產品的原設計師為基礎調查情感意圖，並以實體產品刺激使用者的情感反應，量測兩者之間的情感連續性。本研究提出情感連續性(Emotional Continuity)評估模式，以四個階段進行評估：第一階段，建立燈具語意差異量表，篩選出適合的詞組與Sample作為主要評估方式；第二階段，調查設計師情感意圖，訪談及問卷調查該產品的設計師預期傳達的情感意圖；第三階段，調查使用者情感反應，邀請參與者在觀看實體Sample的空間中訪談及量表填寫，第四階段，分析設計師及使用者情感的連續性，了解情感傳達的情形。
研究結果使用量化數據顯示產品中情感傳達的比例，以了解情感連續的程度，同時檢視成功傳達的情感類型，可以看出較容易傳達的感受，歸納出四種情感傳達的類型及程度。研究發現，當情感意圖微弱時，更容易產生與使用者的情感連續。進一步使用質性資料探究設計師不同類型的設計手法，對使用者感受的影響，並檢視這些設計手法在傳達情感的連續程度，結果顯示，與光氛相關的設計手法對情感連續性影響最大，說明設計師可以利用這些設計手法來影響使用者的感受。本研究成果可貢獻設計師在傳達產品情感時，作為未來設計產品決策的基礎。

Emotions enrich our life experiences, and successful emotional design enhances the appeal of a product, attracting consumers beyond mere functionality by tapping into their emotions. Designers have the ability to influence users' emotions through the visual aspects of a product, evoking various emotional responses. However, the visual design largely relies on the designer's intuition and preferences to anticipate users' feelings, and the actual impact can only be determined once the product is introduced to the market. Can designers successfully elicit the intended emotional reactions from users? Previous research indicates a disparity between designers' intentions and users' perceptions, and if the majority of users' emotional responses do not align with expectations, it is referred to as "emotional discontinuity." This ultimately necessitates a product redesign to align with users' emotional needs, posing a significant challenge for designers.
This study aims to establish an evaluation method to understand the differences between designers' emotional intentions and users' perceptions, in order to measure emotional continuity. Previous research has compared the differences between designers and users, using a group of experienced designers as representatives to predict the design intentions of products and measure the emotional responses of both designers and users using product images as stimuli. In this study, the emotional intentions were investigated based on the original designer of the product, and users' emotional responses were stimulated by physical products to measure the emotional continuity between the two. The study proposes a four-stage evaluation model for emotional continuity: in the first stage, a semantic differential scale for lighting fixtures is established, selecting suitable phrases and samples as the primary evaluation method; in the second stage, the emotional intentions of the designers are investigated through interviews and questionnaires to understand the intended emotional message conveyed by the product designers; in the third stage, users' emotional responses are investigated by inviting participants to conduct interviews and complete scales in the context of viewing actual product samples; and in the fourth stage, the emotional continuity between the designers and users is analyzed to understand the situation of emotional communication.
The research results utilize quantitative data to indicate the proportion of emotional conveyance in products, aiming to understand the degree of emotional continuity. It also examines the types of emotions successfully conveyed, categorizing them into four types and their respective levels. The study reveals that when the emotional intent is subtle, it is easier to achieve emotional continuity with users. Furthermore, qualitative data is used to explore the impact of different design techniques on user perception and evaluate the continuity of emotional conveyance through these techniques. The results demonstrate that design techniques related to lighting atmosphere have the greatest influence on emotional continuity, suggesting that designers can leverage these techniques to influence user experiences. The findings of this study contribute to providing a foundation for future product design decisions when it comes to conveying product emotions.

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