What is Design? What is Interaction design?

"Design is the Conception and planning of the Artificial"
-Richard Buchanan-

"Interaction design is about shaping our everyday life through digital artifacts-for work, play, and entertainment."
-Gillian Crampton Smith-

"Design is a plan for arranging elements in such a way as to best accomplish a particular purpose... The design is an expression of the purpose... It may(if it is good enough) later be judged as art... Design may be a solution to some industrial problems but it is not a craft for industrial purposes."
-from Charles Eames in conversation with Madame Amic-

A narrow definition of interaction design is "The design of the subjective and qualitative aspects of everything that is both digital and interactive, creating designs that are useful, desirable, and accessible."
A broad definition of interaction design is "The design of everything that is both digital and interactive"

Prototypes

What I hear, I forget.
What I see, I remember.
What I do, I understand.
-Lao Tse-

Language is convincing.
Seeing is believing.
Touching is reality.
-Alan Kay-

from Designing and Interactions