Case study research design diagram template

flowchart TB
    A[State the research question] --> B[Literature and theoretical propositions]
    B --> C[Select cases by theoretical sampling]
    subgraph S1[Multiple data sources]
        direction LR
        D1[In-depth interviews] --- D2[Internal and public documents] --- D3[Site observation]
    end
    C --> S1
    S1 --> E[Organize data and triangulate]
    E --> F[Code the data]
    F --> G[Within-case analysis]
    G --> H[Cross-case comparison]
    H --> I[Develop propositions or a model]
    I --> J{Consistent with existing theory}
    J -->|No| F
    J -->|Yes| K[Conclusions]
    K --> L[Managerial implications and limitations]

Draw a case study research design diagram with Mermaid flowchart TB syntax. State the research question, review literature and form theoretical propositions, and select cases. Use one subgraph for multiple data sources with three items joined by plain lines: in-depth interviews, internal and public documents, and site observation. Then organize data and triangulate, code the data, within-case analysis, cross-case comparison, and develop propositions or a model. If the result is not consistent with existing theory, return to coding; if it is, write conclusions, then managerial implications and limitations. Use a diamond for the decision and no parentheses in node text. Output only the mermaid code block.