It is often assumed that the benefit of robots is their strength, speed, or accuracy- qualities that a human operator's "help" can only diminish and that indeed may pose a hazard to him or her. Less recognized is that it may be the robots' interface to computers and information systems that is their primary benefit. Furthermore, even in heavily mechanized environments, people have an important continuing role because of their sensing and dexterity, which cannot be matched or replaced by robots.
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