Health by Design is an exercise in prediction. It uses the talents and knowledge of people in the design and installation of projects, equipment and assets. Involving the right people, who are clear about their role, can create predictions that are powerful in reducing future risk. You will need to involve key stakeholders from the full lifecycle. Make sure they know their responsibilities in controlling the design; so that the risks they know can be shared with others. Within this set of web pages we focus on clients and designers but aim for greater connections with other roles as health by design is developed.