On his website, accident investigation expert witness Kenneth Nemire writes:
Accident Analysis and Prevention Services
Many accidents are caused by products or systems that have not been adequately designed for the people who use them. Others are caused by inattention or other behavior of the persons involved. Usually accidents have multiple causes. We use human factors analytical techniques to identify hazards and create action plans for reducing risks of injury and helping to increase workplace safety and productivity.
• Typical causes of accidents:
• Design. Tools or equipment may malfunction or have poor design • Person. Operator may not have the appropriate knowledge, skills or abilities • System. Organization may fail to warn of hazards or may fail to correct known problems