In modern day society, stress has become an important part of everyday life. In some professions, like air traffic controllers and train drivers, a drop in performance due to the occurrence of stress can even be life threatening for a number of people. Here, the stress feedback model is presented. The automated stress assessment system which is currently being developed, is based on this model. The model consists of several subsystems. Every subsystem is based on one medium only, and is supposed to derive hypotheses about the amount of stress based on that particular medium. These hypotheses are then integrated and appropriate feedback is produced. Parts of these subsystems have been implemented, resulting in several prototypes for every modality. Some preliminary results with respect to these prototypes are mentioned. Finally, some conclusions and possible fields of application of the system are discussed.
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