Leo Frishberg is Principal of Phase II, a Portland, OR based User Experience (UX) and Product strategy consultancy. As Director of UX at athenahealth, he is responsible for driving leading edge efforts to change the US healthcare system. While Sr. Manager, UX at The Home Depot Quote Center, he established a world-class user experience team driving a multi-billion dollar enterprise. At Intel, as Product Design Manager, he led multiple enterprise UX teams responsible for enabling technologies. Leo began the enterprise phase of his career as Principal UX Architect at Tektronix where he established UX as a strategic component of the Logic Analyzer Product line. Learn more about this leading edge design-research method at the companion website to the book Presumptive Design.Charles Lambdin is a User Experience Researcher and Designer at Intel Corporation. He has a Master's in experimental psychology and a PhD in human factors. Most of his publications are in the area of research methodology and statistics.