Description To provide affordable and livable living space for 11.2 bn people in 2100, we must begin today to significantly increase productivity in the construction industry. Digitisation offers the opportunity to industrialise processes in construction on a sustainable basis. Contakt is the combination of method knowledge for construction management, software, artificial intelligence and sensor technology. With the help of Contakt, concrete construction sites become intelligent, i.e. the execution is mirrored in real time against the virtual building model: it allows the teams a disruptive, new way of planning, monitoring and improving construction projects. Performance and improvements are made transparent so that immediate optimisation can be achieved and the data can be used for future projects.