Despite substantial research in Virtual Reality, the emerging related technology of Mixed Reality (MR) that creates an environment where virtual and real objects are presented together on a single display, has rarely been explored in the Architecture, Engineering, and Construction (AEe arena. Observation of lab-based MR applications highlights the need for a structured methodology addressing suitability and usability issues for the application potentials of MR technology to be fully realized. This book has addressed the three major serial development steps: specification, prototyping, and evaluation. The scientific contribution of the developed specification was the formulation of a comprehensive multi-dimensional taxonomy for specifying MR technology and characteristics. The concept - Mixed Reality-based collaborative virtual environments (MRCVE) - was presented and the prototypes in two identified application scenarios (face-to-face scenario and virtual space scenario) have been successfully developed. Evaluation was implemented on the basis of the MRCVE prototypes in terms of benefits validation and usability evaluation.