“Great designers create pleasurable experiences. A good experience determines how fondly people remember their interactions.”
Don Norman, The Design of Everyday things, pg 10
For things to be easy to use they need to be “discoverable”. Don Normans Fundamental Priciples of Interaction found in his famous book The Design of Everyday things, describes the properties discoverable product into four key components.
Affordances
An affordance isn’t a property of an object but a relationship between the capabilities of a person and the properties of an object. A possible action someone can take toward an object.
A door affords opening. A humans strength is capable of pushing or pulling a surface supported by hinges to swing open and closed.
Signifiers
These communicate where an action should take place. e.g. a door handle with a PUSH sign on it signifies how to open the door. Sometimes signifiers are accidental.
A door with JUST a handle signifies the ability to push and pull, despite whether the action is intended. (When you try to push a door open when it is actually a pull). A good designer is careful that their products don’t accidentally signify an unintended use.
Feedback
Communicates the result of an action. Without it, is like trying to hit a bullseye with an arrow without seeing the target. Users need to know that the action they have performed has resulted in what they intended.
The door opens when it is pushed. Feedback has to be planned and not be obtrusive.
Conceptual Models
This explains how something works. Clues come from signifiers, affordances, constraints, and mappings. The type of door handle indicates how the door is supposed to be opened: a knob, a handle, a push panel, a button, or an automatic opening etc…
Shared Objects
Shared objects don’t currently afford the need to be cared for. They are built to last, to withstand vandalism, and repeated use by multiple people. In order for shared objects to be cared for, their physicality needs to communicate with our instinctual care for our own possessions.
When a young child cries or lifts arms wanting care we immediately jump to help. The child has signified that it needs help by crying and lifting its arms. It knows that we are going to help because of the relationship the child has with you. You know how to help the child because you’ve done it in the past. The feedback comes when the child is no longer crying.
Currently shared objects are built from robust materials. These materials signify that they can withstand brutal conditions. Would shared objects be more looked after if they were made from materials that obviously required consistent maintenance? Would that signify the need for care? Likewise if they seemed precious would they be treated as if they were? What makes objects precious and cared for.