All of the methodologies and tools introduced throughout this book rely on the evaluation of appropriate case studies. This chapter introduces three industrial-strength case studies serving as a foundation for all subsequent chapters in this book.

The Sales Scenario case study demonstrates business application engineering in the domain of enterprise software, a rather large domain encompassing, for example, enterprise resource planning (ERP), product life cycle management (PLM) and supply chain management (SCM). Such solutions must be adapted and customised to the particular company where the activities are employed. This is not a trivial task because of highly different needs of the respective stakeholders. For this reason business applications often have thousands of configuration settings. To reduce the complexity for the sake of conciseness, the Sales Scenario case study is focused on one specific sub-domain – customer relationship management (CRM) – combined with some parts of the aforementioned solutions.