Within the context of resolving innovative design problems, this paper proposes an innovation aid methodology comprises analysis, formulation and resolution of innovative design problems at the behavioral phase of preliminary design.  This latter characterized by the existence of induced effects, generally imposed by the technical system components structuring, and often representing a source of the harmful effects that must be eliminated. Harmful effects as a type of design problems can be formulated as one or several technical contradictions developed in TRIZ theory (Russian acronym for "Teoriya Resheniya Izobretatelskikh Zadatch" Theory of Resolution of innovative problems). In this sense the work presented in this paper proposes an aid methodology for technical contradictions standardized formulating, (ie the problem abstraction according to TRIZ theory), then the resolution exploiting TRIZ contradiction matrix. A classification of the 39 TRIZ engineering parameters was proposed to assist technical contradictions standardized formulating. The developing of this approach involves a whole analyzing of the design process and the main elements of contradiction matrix.Within the context of resolving innovative design problems, this paper proposes an innovation aid methodology comprises analysis, formulation and resolution of innovative design problems at the behavioral phase of preliminary design.  This latter characterized by the existence of induced effects, generally imposed by the technical system components structuring, and often representing a source of the harmful effects that must be eliminated. Harmful effects as a type of design problems can be formulated as one or several technical contradictions developed in TRIZ theory (Russian acronym for "Teoriya Resheniya Izobretatelskikh Zadatch" Theory of Resolution of innovative problems). In this sense the work presented in this paper proposes an aid methodology for technical contradictions standardized formulating, (ie the problem abstraction according to TRIZ theory), then the resolution exploiting TRIZ contradiction matrix. A classification of the 39 TRIZ engineering parameters was proposed to assist technical contradictions standardized formulating. The developing of this approach involves a whole analyzing of the design process and the main elements of contradiction matrix.