Control errors are instances of the operator's failure to perceive or respond to hazards.
Control errors are typical of design that does not incorporate sufficient means to protect from the the errors.
A machine controlled manually ...
This design is error-prone. The critical component is this design is the operator, who might not notice risky situation, such as mal functioning.
A boiler design in which the heating is controlled manually ...
Updated on 23 Jan 2017.