l2ryoi-eho 1-33, btage-ku, Chiba 263-8522, Jtrpan " Chiba Uhiversity l2u,oi-cho 1-33, lhage-ku, Chiba 263-8522, .Iopan " School ofU}・ban Design, PPbehan Uhiversiijl 8Dong Hit Nbn Lu, PPVthan 430072, China Abstraclt Considering the gradually increasing pressures te constmct a more sustainable society, it is required to reconsider the current product design and manufacture. Therefore, development of a new design paradigm is needed, changing from mass production and mass consumption to the

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... oriented post mass preduction, whieh pursues the differences in product quality and service-based product value creation considering product 1ifecycle. Based on the analysis of current situations of service-oriented research, this paper pointed out three existtng problems in service engineering. such as lack of: (1) concrete analytical means fbr service system elements, (2) development means for new service concqpt, and (3) development of application tools for service design practice. In addition, preduct sustainability is also discussed, It indicates that currently product added value Cparticularly kansei value) creation could be an effective way to promote product sustainability from eco-mind till to realize the improvement and optimization of service and product system, In this way, developing new methodology for product kansei value creation is urgerit.