Linking Use Stage Life Cycle Inventories with Product Design Models of Usage

Usage can have a significant environmental impact on the product life cycle. A precise evaluation and understanding of this impact during design is crucial to support early and adapted feedbacks to design experts to encourage the eco-design practice. Information on usage is spread across different field of expertise, and involves explicit and tacit knowledge. This research aims at improving the link between the available usage information, and the environmental expert's explicit knowledge on usage. A five steps method is proposed and exemplified in this paper to formalize this link. The paper finally raises the question of how to deal with conflicting usage information during design in industry.