Emrah Yayici contributes to UXPA (User Experience Professionals Association) as a chapter vice-President. He is the author of the best-selling UX Design and Usability Mentor Book, Business Analysis Methodology Book and Business Analyst's Mentor Book. He is one of the managing partners of UXservices, BA-Works and Keytorc. He started his career as a technology and management consultant at Arthur Andersen and Accenture. Afterward he led global enterprise transformation projects at Beko-Grundig Electronics. During his career he has managed multinational and cross-functional project teams in banking, insurance, telecommunications, media, consumer electronics, IT industries, and startups. He has also contributed to IIBA(R) (International Institute of Business Analysis) as a chapter President and ISTQB(R) (International Software Testing Board) as a former international board member. He is now sharing his experience about UX design, usability, business analysis, business development, entrepreneurship, lean product development, customer experience design, and quality assurance by publishing articles and books, leading training sessions, and speaking at conferences.