This presentation outlines the key aspects of case study research design. It discusses the importance of context, the use of theory for building or testing explanations, and research methodology. Primary and secondary data sources are examined, including interviews, documents, observations and questionnaires. The composition of case studies is explained as focusing on research questions, theoretical propositions, units of analysis, logic and evaluation. Multiple methods and longitudinal data collection can be used. Case studies are useful for exploratory, descriptive and explanatory research aimed at understanding how and why phenomena occur.