CAD systems in mechanical and electronic design: usage and implications some years after introduction

Design employees from three companies participated in a study carried out to examine their experiences of computer-aided-design work. Most of the CAD users appreciated the ease in altering drawings and the ease in testing alternative solutions offered by CAD systems. Dependence on the CAD system was a disadvantage reported by many CAD users and one-quarter of them experienced a sense of inadequacy in relation to the system as a consequence of difficult commands and confusing information obtained from the system