Case study refers to a research design for in-depth investigation of a person or small group of individuals.
This research design is not a reliable source for generalized statements beyond those investigated in the study.
Other definition:
Case study refers to an intensive and usually anecdotal observation and analysis of an individual subject.
List of books: Case,study
Other /More definition:
Case study refers to an analysis of all pertinent aspects of one (1) unit of study.