MASC, a model to assess the sustainability of cropping systems: Taking advantage of feedback from first users

International audience; The first version of MASC model (for Multi-attribute Assessment of the Sustainability of Cropping Systems) has been designed initially to select newly designed Cropping Systems (CS) before testing them in field trials (Sadok et al., 2009). Different users in the field of agriculture tested MASC in various contexts and commented its use and its usefulness. We recorded comments from these users in order to gain greater insight of their requested needs and in order to improve the model.