Abstract
To cope with the growing environmental problems, it is necessary to close the manufacturing system in terms of reduce, reuse and recycling. For this purpose, life cycle options should be adequately selected at the beginning of life phase. In the case of long-life products, however, these life cycle options should be reexamined at the end of life phase because of various changes during the life cycle, such as demand for reused parts and market price of recycled material. In this study, we propose a support system for selecting optimal life cycle options taking both environmental and economical aspects into account. The effectiveness of the system is verified by applying it to automobile parts.
