The building process involves both dynamic processes and professional teamwork, a combination that confers on all the actors great economic and technical responsibilities. There are arguments for involving the user in the design process, so as to achieve appropriate outcomes. It is important to maintain a creative and generous working climate early on in a building-project, especially if users are involved: users may not be used to the aim of the process or the language used in the dialogue between the actors involved. It can be difficult to keep a dynamic process "alive" when a host of regulations and laws is directing and controlling both the actors' roles and their responsibilities to society and the project. There are also cultural factors and traditional working methods that can restrict the innovative design process. The architect can be the actor who guides the users through this dynamic process, keeping it alive. To achieve good results the architect needs certain skills and experience and need to draw on various models and methods to support the process. Which are the possibilities for and obstacles to steer the dynamic process? And what are the qualifications and working models needed to ensure success in this task?