Determining how the collected evidence will support the research claims.
Yin identifies five critical components that must be determined at the outset to ensure research quality:
Researchers are encouraged to use triangulation by drawing from six sources of evidence: documentation, archival records, interviews, direct observations, participant-observation, and physical artifacts. Case study research : design and methods
Concepts derived from existing literature that guide the study's focus (optional for exploratory cases).
Defining what the "case" is (e.g., an individual, program, or organization) and establishing its boundaries. Determining how the collected evidence will support the
Yin distinguishes between single-case designs (used for unique or extreme cases) and multiple-case designs , which follow a "replication logic" to strengthen generalizability.
Establishing the standards for evaluating the results, such as identifying patterns or commonalities. Methodological Framework Defining what the "case" is (e
Typically "how" or "why" questions that explore contemporary phenomena within their real-life context.