The organizational model 'Shared Services' is a topic of interest for many companies. It refers to the consolidation and centralization of processes within administrative organizational units. The HR function, in particular, has taken up this theme. What advantages does this model offer, and what disadvantages need to be addressed? This book provides readers with an unbiased look into practice. With contributions from experienced practitioners, consultants, and scholars, this guide offers valuable insights, methods, and solutions for the introduction and operation of a Shared Service unit. It addresses not only risks and misjudgments but also employee and customer issues. In the second edition, new management methods such as ITIL management and practical experiences with advanced process management are presented. A section on legal questions has also been included, along with new practical examples. The book provides background information, decision-making, and planning assistance, primarily targeting HR managers, implementers, and developers who want to further develop or introduce the SSC model.