Manufacturers are requested to reduce hazard emissions not only during the production phase but also during the utilisation phase of the products by their customers. Further more they are facing the obligation of taking care of these products at the end of their life. Product design has been based on functional analysis and value engineering. Functions and costs related to the all life and to the impact on environment of the product has not yet been included in these methodologies of product design. After the time of design for manufacturing, design for maintainibility, the time of design for environmental concerns and material recovery is coming. New design tools are needed. They can be developed within the frame of value engineering. For that the designers must be able to enter a collective learning process with all the downstream actors. These downstream actors are not only manufacturing engineers or parts suppliers as in concurrent engineering, but also distributors, consumers, collectors, recyclers. The participants of this exploratory phase network have decided to join their efforts for an inventory of the research and experiences already developed on this topic.