An Eye Tracking Device (ETD) facilitates the comprehensive measurement of eye movements (horizontal, vertical and torsional): it provides the basis for many types of vestibulo-oculomotor and visual research works, and can be adapted to locate gaze positions (i.e. the position on a computer. screen or through a vehicle windshield where the eyes are looking at). A consortium of six SMEs active in the field of data acquisition on board vehicles (ONE-TOO) and in the field of advertisement optimization on Web pages (AREA17, INCORDIA, PLAN_B MEDIA, APPSS, MULTIMEDIA) have joined to develop anew, portable 3-D ETD system which is able to perform eye and gaze tracking, at very high sampling rates and within difficult environments. They rely on a group of SME (Kayser Threde, MEDIASCORE) and a Research organisation (INRIA) in order to develop a prototype ETD with features and benefits much beyond what is currently available in order to answer questions such as How are the eyes behaving when the hypo vigiiance state of a road vehicle driver is observed? How are the eyes behaving in front of complex Web page screens presenting myriads of data to Web surfers This research project improves the NASA implemented eye tracking solution, from KA YSERTREDDE., and should implement some of the latest software algorithms developed by MEDIASCORE for gaze measurement. This project is in support of Improved innovation in service companies (In the car industry where there is a need to develop at a European level an understanding of driver's hypo vigilance to make cars, in the marketing and communication industry where there is already a considerable activity in the impact measurement of Web pages on consumption behaviour). This project supports also trans national cooperation, where a space-based technology solution is going to be adapted and used in the transportation and communication sectors, using the background experience of specialists of cognitive processes.