This paper will present the main topics of our team. The IVGI Team (French acronym for Virtual Engineering for Industrial Engineering) defines methods for the integration of several models in the system-design process. The focus is on the integration of cost factors and human factors based on a FBS-PPR model designed to capture enterprise knowledge. For these fields, cost, human and knowledge, innovative modelers are studied and in the meantime a strategy to settle a common transposable integration base is prospected.