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International audienceIn order to go beyond optimization strategies in Computer Aided Innovation, it has been demonstrated that model changes are required [1,2] during Inventive Problem Solving Process (IPSP). TRIZ proposes a universal way of generating model changes thanks to contradiction statement and contradiction solving but it does not provide methods or tools for obtainting them from typical CAD or other kind of standard data. The aim of the following paper is to propose an algorithm which extracts from an object-oriented simulator a “genealogy” of contradictions systems (both physical and technical contradictions) and formulates corresponding Substance-Field models at the basis of TRIZ Inventive Standard application. This algorithm is fed by optimizations performed on various assemblages of objects constituting the simulator program. It helps disclosing contradictions that cannot be seen by domain experts due to high complexity of problem and is an additional step towards formalization and integration of TRIZ models

Automatic Extraction of a Contradiction Genealogic Tree from Optimization with an Object-Oriented Simulator