"The customer is KING, King is always right, King never bargains."
Affordance created by the psychologist J.J.Gibson, refers to the qualities of the physical world that suggest the possibility of interaction relative to the ability of an actor(person or animal) to interact. An affordance is a quality of an object, or an environment, which allows an individual to perform an action. Human affordances are perceivable potential actions that a person can do with an object. In terms of HCI, icons, folders, and buttons afford mouse-clicking, scrollbars afford sliding a button to view information off-screen, and drop-down menus show the user a list of options from which to choose. Similarly, pleasant sounds are used to indicate when a task has completed, signaling that the user may continue with the next step in a process. Examples of this are notifications of calendar events, new emails, and the completion of a file transfer.
The Point of affordances iss when affordances are taken advantage of, the user knows what to do just by looking; no picture, label, or instruction needed.
Affordances in GUI's :
-important concept
-buttons drawn as 3D shapes appear to "stick out" and afford pushing
-sliders and scroll bars afford dragging.
Refrences :
Lecture's notes
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