The main topics of the conference are recognition, development and encouragement of virtual space design which in a consequence respect the problematic of sensitive and even fragile places of our physical and virtual surroundings. How do we define the levels of fragility either in physical or in virtual space, or in any fluid architectural endeavours? How do we respect the diversity of spatial fragility levels while introducing new design interventions? What can be defined as a (eCAADe-) sensitive / responsive / responsible design intervention? How to develop physical and virtual laboratories for sensitive / responsive / responsible design interventions? How to promote sensitive / responsive / responsible design interventions as members of eCAADe and related communities? What is the future of physical and virtual environments, requiring the most sensitive and responsible design interventions? These are just a few questions which were addressed at the eCAADe 2011 conference.