Abstract: Modern innovation technology is shifting toward human-oriented technology structure combining technology and emotion. In this context to optimize user experience from user’s perspective, it is necessary to understand consumer’s usage experience and interaction between users and products in specific contexts. This study explores consumer’s product usage experience and interaction with product to identify what kind of values consumers seek. By doing so, this study aims to identify how to structure a product and system to form emotional bond and attachment relations. Specifically, this study seeks to identify how users feel while interacting with products and which values they regard importantly in the experience of product. In doing so this research present an alternative to design new products and systems supportive of developing more emotionally cherished digital products. In the study, the researchers have conducted interactive elements analysis through FGD. Of the user-product interaction factors collected via the survey, interaction services common in diverse brand products were extracted and classified. Then qualitative survey was conducted in order to analyze the effect interaction elements on the attachment. To evaluate the predictive power of the independent variables (satisfaction for four interactive factors: function*person, function*system, emotion*person, emotion*system) on the dependent variable of attachments (attachment, possessive attachment and experiential attachment) a multiple regression analysis was performed. Finally, IPA (importance-performance analysis) was performed to find out which service experience needs to have an improved. Attachment is an essential factor for sustainable product. Designing and developing interaction experience enhance not only the practical value of a product but also its emotional value to form a relationship of attachment. Also, positive interaction is expected to improve product values, generate the sense of attachment to the product and expand product lifespan to improve the quality of user-product relationship. Therefore, it is essential to form products and design systems based on the understanding of the relationship between product and consumer which is formed based on the interaction with product and consumer usage experience during their possession of the product. Products should be designed to give positive and pleasant usage experiences to consumers and facilitate interaction with them in order to build consensus with user, let them attach special meaning to it and form a relationship of attachment.