For mergers and acquisitions in the software industry this book lays the foundation for successful due diligence. Based on methodological foundations, a business model driven approach for due diligence is presented. The key difference between this book and other due diligence books: this book focuses on a business model driven approach, M&A processes, M&A organization and software industry specifics. The book focuses on four goals. First, it focuses on creating a holistic view of acquisition targets using business models. Second, the book defines differences of the software industry to other industries. Third, the book tries to lay the foundation for standardization of due diligence activities. It also analyses the right setup for acquirers to successfully carry out acquisitions. Fourth, it elaborates on typical business models, business ecosystems and partnerships in the software industry. Many examples from real life due diligence activities and many hints make this book a valuable resource for business professionals in mergers and acquisitions in all industries.