The field of innovation requires a deep knowledge and understanding of the market and the customers. Therefore this book tries to elaborate how SMEs can reduce the additional risks and challenges they have to face compared to big corporation. It tries to clarifies question such as what the most important resources for developing innovations are. Based on already existing literature a well-functioning, success-oriented innovation process for SMEs is being developed. To complete those, the roles of both, marketing department and sales department, are being clarified.