Résumé
Several conceptions of social LCA lend on two often implicit hypothesis i)the source of impacts, the stressor would be either from technical origin, either from social one. It stems from it that relating the quantity of impacts to the quantity of functional unit has to be done through the unit processes, as it is done in ELCA. ii) companies are singly and freely choosing their practice, and even imposing social behaviour. We expect pointing out that we may build another representation. The values of the social indicators may be related proportionally to the functional units, if we handle them at the relevant level. Suggestions about the potential levels for picking up the data will conclude this proposal.