That aside, the one thing that is not (so much) studied is the adoption process by persons using the devices: I guess most studies don't ask much about the "personlization" process of the use of the device as they do about the reliability and validity of the metrics gathered. That is just right, but hence it lacks of insights into the adoption and implementation proces by the patients: what factors will influence a right way of use as well as a compliance in use. I did a study on individual/personal factors that could influence the compliance to diabetes therapy and I concluded that there is room for the hypothesis that there are profiles of opposing patterns of personal influences on compliance. ...