IND 712 Study Guide - Midterm Guide: Steering Wheel, Human Factors And Ergonomics, Affordance
11 Feb 2018
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Design of controls & display lecture 04/05. Small actuation force + small range of continuous settings = knob, joystick lever. Large actuation force + 2 discrete settings = hand pushbutton, pedal. Over the years, many controls have become standardized. Control movement stereotypes = trained expectations, such as in the usa you flip a light switch up to turn it on, close valve = clockwise turn, pull = retract. Provide an example of a one-to-one correspondence and a non one-to-one correspondence. Clear relationship between movement of control and the controlled element, such as moving a lever upward causes a crane to lift an object upwards. Non one-to-one correspondence would be pressing a lever downwards in order to go forwards. If a set-up on a new control is different than a similar set up elsewhere, meaning the operator has bad habits (i. e. more likely to cause error) Give a sentence or example to describe/explain each.
