A profile of a user may be constructed having at least one profile entry. A device having an integrated sensor assembly including at least one sensor may be associated with the user and operated according to a sensor configuration. Sensor data may be processed to extract a feature. Entry data may be determined for a profile entry based on the extracted feature so that the profile entry may incorporate the determined entry data. An exchangeable profile may be derived from the constructed profile, for example by using privacy data, and compensation from a third party may be received in return for the exchangeable profile.