Peter Ylén is Principal Scientist and Foresight and Data Economy Lead at VTT. He is the product owner of VTT CityTune® impact assessment tool used in impact assessment and solving complex challenges. Recent application fields include topics, such as, Special product manufacturing, Outcome economy, Complex project management systems, maintenance business modelling, energy optimization, determining leverage points for business ecosystems and developing regional circular economy. His area of interest is modelling, simulation, optimization, analysis and re-engineering of technological, social, cognitive and business processes.