Mapping is the relationship between the elements of two sets of things
Ex. Switch mapping Lights in office
Mapping the layout of controls and displays
Ex. Steeling a car, rotate the steering wheel clockwise to cause the car to turn right.
Ex. Tank is different,its designed to control wheel speed because it uses track
It doesn't matter whether these conceptual models are accurate: what matters is that they provide a clear way of remembering and understanding the mappings.
Natural mapping leads to immediate understanding.
Ex. to move an object up, move the control up.
Ex. Make light control mapping same as lights in room
Ex. Automobile Seat Adjustment control
Note the "natural" is specific to a particular culture.