We are happy to inform you that the long paper: 'Colliding systems: formal and real-life learning' by Anne Nigten and Annemarie Piscaer has been accepted for ISEA2019, Lux Aeterna, in GwanJu, Republic of Korea. In this paper we analyse two case studies: Mediawharf (The Patching Zone) and Citylab air quality (Studio Dust).