01249nas a2200133   4500008004100000245011100041210006900152260001200221520074700233100001700980700002300997700002601020856006901046       2014                        eng d00aCreating ruptures in actual representations to support the design of sufficient and convivial way of lives0 aCreating ruptures in actual representations to support the desig  aLeipzig3 aSociety is front of a systemic crisis (resources scarcity, absence of citizen involvement, technological servitude). During the last years, a lot of initiatives, from different levels of society have emerged aspiring to more stronghly sustainable ways of life. In this paper, we investigate how to support designers of alternative initiatives. We first argue the need to create ruptures in user behaviors when facing daily activities. In a second part, we propose and illustrate three activities supporting design for everyday simplicity : elicitation of user-system value contradictions, eco-ideation and design of learning and open environment. Key words : strong sustainability, user behaviors, eco-ideation, learning and open environments1 aREAL, Marion1 aTyl, PhD, Benjamin1 aLizarralde, PhD, Iban  uhttps://degrowth.community/conference2014/scientific-papers/3517