Researchers using qualitative case study methodology generally follow its core features to varying extents, depending on factors such as their research objectives, methodological rigor, and familiarity with case study design. The extent to which they adhere to these features can be assessed by examining key aspects of their research, including:

1. In-Depth Exploration of a Case

2. Use of Multiple Data Sources (Triangulation)

3. Contextual Analysis

4. Flexible and Emergent Research Design

5. Use of Theoretical Frameworks

Core characteristics of qualitative case study methodology, such as context-specific analysis, numerous data sources, and in-depth case inquiry, are frequently followed by researchers. The degree to which they follow these characteristics, however, can differ depending on the goals of the study, the degree of flexibility in the approach, and how the technique is interpreted.

I think it the research where you observe people doing while you record information