This book offers a logically structured compilation of methods that cover important and current aspects of the early phase of the innovation process. They encompass the entire range from market-pull/customer-oriented approaches to technology-push-based strategies, applicable in both manufacturing and service-oriented companies. When companies make better decisions in the "fuzzy front end of innovation," it positively impacts the entire innovation process. On one hand, unnecessary evaluations and the development of prototypes can be saved, while on the other hand, precise innovations can create greater customer value. In this edited volume, experts and leaders from the fields of Corporate Development, R&D, Product Management, and Marketing share their specialized knowledge and experiences.