In software interfaces managing affordances is critical, a user might perceive possible actions based on the properties of interface objects.
Desired actions cannot be carried out if the object does not afford it, and afforded actions might not be carried out if the user does not perceive they are possible.
Don Norman introduced the term perceived affordance in his book named Psychology of Everyday Things to refer to the actions a user perceives to be possible, distinct from those which are actually possible.
A user’s perception and understanding of affordances might vary according to their ability, goals, beliefs, context and past experiences.
by Avadh Dwivedi · Interaction Designer @Olacabs in Affordance in user interface design
by Jon Robinson · Multidisciplinary experience design consultant in How Sketching Will Make You a Smarter Designerby Jon Robinson · Multidisciplinary experience design consultantin How Sketching Will Make You a Smarter Designer