Case studies are a useful way to communicate ideas, especially in cases in which one introduces abstract ideas. Case studies enable one to present the essence of the idea, yet not to present it too abstractly. In this chapter, you will be asked to construct, relate, and analyze case studies. The relevance to software engineering is clear. First, in the process of building the case studies you will address software engineering issues. Second, when you analyze your case study, you will deepen your understanding of the relative importance of the different topics mentioned in the case study. Such understanding may improve your understanding of software development processes in general.