Guidelines & Principles. The PRECIOUS system will provide a motivational framework tailored to the individual and their lifestyle on a variety of different levels, with a strong emphasis on positive enforcement. The overall goal of the motivational system is to facilitate sustained internalisation of healthier behaviour over time, the core of the system consisting of goals (what behaviours to change), self-monitoring (sensoring, see Deliverable 3.1) and feedback (rewards etc.). From a conceptual point of view, the framework can be thus split into four different parts: • Understanding The individual’s motivation, interests and (previous) activities will be quantified within the Virtual Individual Model in form of different, aggregated variables from psychological theories in order to create a link between the individual, a suggested action or intervention and a response, cumulating in classifications in forms of for instance changes of change. A list of potential variables can be found in the report Deliverable 3.1. Empirical evidence as well as recommendations and guidelines from studies will serve as a starting point in order to suggest interventions and applications relevant to the individual, and the quality of these relationships will increase over time due to the system’s capability of learning by checking on how the user responded to suggestions. Including psychological variables into this process is an entirely new concept that could potentially enhance an individual’s motivation for actual behaviour change. • Behavioural Change Starting from the Virtual Individual Model’s parameters, suggestions in terms of behavioural change techniques can be made that are contextually (location, weather, etc.) relevant, best fitting to the motivational status of the user and closest to the user’s specified goals. This also enables the system to identify potential conflicts in terms of time requirements and other factors for interventions, and thus do not suggest health measures unsuitable for the users current situation.
