Robert K. Yin's Case Study Research: Design and Methods is widely regarded as a foundational text for conducting rigorous qualitative research. First published in 1984 and currently in its sixth edition (as Case Study Research and Applications ), the book provides a systematic framework for the entire research process, from initial design to final reporting.
The book outlines a linear but iterative process for conducting research:
Establishing the standards for evaluating the results, such as identifying patterns or commonalities. Methodological Framework Case study research : design and methods
Researchers are encouraged to use triangulation by drawing from six sources of evidence: documentation, archival records, interviews, direct observations, participant-observation, and physical artifacts.
Concepts derived from existing literature that guide the study's focus (optional for exploratory cases). Robert K
Determining how the collected evidence will support the research claims.
Yin distinguishes between single-case designs (used for unique or extreme cases) and multiple-case designs , which follow a "replication logic" to strengthen generalizability. The book outlines a linear but iterative process
Yin emphasizes that data analysis is often the most difficult stage and requires a clear strategy, such as pattern matching or explanation building. For the final report, he suggests several structures, including linear-analytic, comparative, chronological, and theory-building formats. 3rd Edition (2003) 5th Edition (2014) 6th Edition (2017) Primary Focus Establishing the method's rigor. Advanced concepts for rigor. Integrating applications and research. New Features Logic models for analysis. 9 new cases, 7 tutorials. 11 in-depth applications. Major Update Expanded multi-method studies. Focus on logic models/ethics. Emphasis on rival explanations.