...1997). Case Study Case studies are an exploration of a "bounded system" or a case (or multiple cases) over time through detailed, in-depth data collection involving multiple sources of information such as interviews, observations, documents, archival records, artifacts, and audiovisual materials...

...individual interviews. A case study "is an exploration of a bounded system or a case (or multiple cases) over time through detailed, in-depth data collection involving multiple sources of information" (Creswell, 1998, p. 61). A bounded system is one that is bound by time and place, for example, an HIV...

...partnerships. Cresswell defines this method as the "exploration of a bounded system (case or multiple cases) over time through detailed, in-depth data collection involving multiple sources of information rich in context, which include observations, interviews, audiovisual material, documents, and reports"...