Emrah Yayici contributes to IIBA® (International Institute of Business Analysis) as a chapter President. He is the author of the best-selling Business Analysis Methodology Book, Business Analyst's Mentor Book, and UX Design and Usability 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 also contributed to UXPA (User Experience Professionals Association) as a member and ISTQB® (International Software Testing Board) as a former international board member. He is now sharing his experience about business analysis, business development, entrepreneurship, product development, customer experience design, UX design, usability, and quality assurance by publishing articles and books, leading training sessions, and speaking at conferences.