[Computer terminals. Evaluation of utilization time]. / Valutazione dei tempi di utilizzo del videoterminale.

The aim of the present study was to compare the duration of computer use assessed through a software package and through self-report by questionnaire. Applied in a large Public Administration the software package led altogether to a remarkable reduction in the number of workers reaching the duration of use which requires medical examination. Nevertheless, it highlighted that self-reporting of a considerable number of workers had underestimated the computer use. The consistency with Italian laws is also discussed.