Human Centred Design methods will be similarly employed in the development of assisstive controllers, allowing for appropriate consideration of the experience of individual product users. The implementation of software and hardware demonstrators will also allow for the validation of the overarching delivery platform and illustrate the route to mass customisation using advanced and integrated digital manufacturing techniques. To provide an appropriate path to integration across these elements, and to allow for appropriate points of reflection, the project methodology comprises three critical milestones at 12 month intervals: