“Mockup… The term itself brings to mind the duality inherent in this omnipresent design artifact. It’s both a direct representation of a product experience and a shallow portrayal of an interactive system at the same time. Perhaps the term originated with engineers or product managers intent on pointing out that the mockup was just that: a superficial representation that could never compare to the real product they had to build.” (Luke Wroblewski – UXmatters)