Chapter 1 is a general introduction that introduces professional software engineering and defines some software engineering concepts. I have also included a brief discussion of ethical issues in software engineering. It is important for software engineers to think about the wider implications of their work. This chapter also introduces four case studies that I use in the book. These are an information system for managing records of patients undergoing treatment for mental health problems (Mentcare), a control system for a portable insulin pump, an embedded system for a wilderness weather station and a digital learning environment (iLearn).

Chapters 2 and 3 cover software engineering processes and agile development. In Chapter 2, I introduce software process models, such as the waterfall model, and I discuss the basic activities that are part of these processes. Chapter 3 supple- ments this with a discussion of agile development methods for software engineer- ing. This chapter had been extensively changed from previous editions with a...