Today, customer satisfaction is one of the most crucial success factors of enterprises. As shown in several studies, there is a strong positive correlation between customer satisfaction and profitability of an organization. Therefore, an efficient and effective method to define and measure customer satisfaction is necessary not only to obtain valid results but also to identify potentials for further organisational development. Specific literature provides extensive information and numerous tools to measure customer satisfaction, each of them with a slightly different focus. Managers have to face the challenge of choosing the most appropriate method depending on the customer structure, the products, etc. In this doctoral thesis, a 4-step-procedure was developed that enables the manager to quickly assess these numerous customer satisfaction methods. A questionnaire shall guide the manager step by step towards his understatement of customer, customer satisfaction and finally to his tool for customer satisfaction measurement.