Summary: Open Design refers to a stakeholder-oriented approach in Architecture, Urban Planning, and Project Management, as developed by the Chair of Computer Aided Design and Planning of Delft University of Technology. This edition collects the following three volumes on Open Design: Open Design, a Collaborative Approach to Architecture, offers concepts and methods to combine technical and social optimisation into one integrated design process. Open Design and Construct Management, Managing Complex Construction Projects through Synthesis of Stakeholder Interests, offers a new approach to managing complexity by distinguishing best management practices for complex projects involving considerable uncertainty and risk and best practices for straightforward predictable projects. Open Design, Cases and Exercises, enables the reader to become familiar with the decision-oriented design tools of Open Design, and their application in practice.