In a world of increasingly complicated technical systems connected in complex structures there will be a need of a flexible, easy-to-use and intuitive support system. The approach described in this report is to base this support system on Mixed Reality ideas and techniques. Mixed Reality can be described as a technical information system that allows human-machine interaction where real and virtually generated image objects are mixed (merged) in varying degrees and presented in the field of view of a user. The purpose of the project is to generate knowledge about how a future support system, based on Mixed Reality, should be designed concerning technical solutions, aspects of Human-Machine-Interaction and logistics. The report describes the work performed in phase 3 and regards technical solutions and design. The report is in the main divided into the following parts: o A short introduction to Mixed Reality o Studies of project test case examples o A thorough description of emerging technologies developed in the project. Mixed Reality seems to be useful not only in the area of technical support systems but also in other areas where this type of visualization can give the user quite a new ability.