A user-centered methodology for knowledge based systems development: MODESTI

A knowledge based system (KBS) has to permit one or several users, generally non-experts, to solve problems regarding human expertise. Current KBS development methods help designers to define systems which operate correctly from an expert´s competence point of view, but which have important deficiencies from an interaction with users point of view. This paper presents the basis of a methodology which views at simultaneously a co-operative approach between expert, user, computer engineer, human factor specialist and knowledge engineer for developing acceptable, useful and usable systems. This methodology is based on a multi-model design approach