Validation case - 3SE

flowchart TD N1["Validation case"]:::current N2["Constraint validation case"] N3["Hardware architecture validation case"] N4["Software architecture validation case"] N5["Stakeholder constraint validation case"] N6["System architecture validation case"] N7["System constraint validation case"] N8["Requirement validation case"] N9["Functional validation case"] N10["Stakeholder functional validation case"] N11["System functional validation case"] N12["Non-functional validation case"] N13["Stakeholder non-functional validation case"] N14["System non-functional validation case"] N15["Stakeholder requirement validation case"] N16["System requirement validation case"] N17["Stakeholder validation case"] N18["System element validation case"] N19["System validation case"] N2 -->|subclass of| N1 N3 -->|subclass of| N2 N4 -->|subclass of| N2 N5 -->|subclass of| N2 N6 -->|subclass of| N2 N7 -->|subclass of| N2 N8 -->|subclass of| N1 N9 -->|subclass of| N8 N10 -->|subclass of| N9 N11 -->|subclass of| N9 N12 -->|subclass of| N8 N13 -->|subclass of| N12 N14 -->|subclass of| N12 N15 -->|subclass of| N8 N10 -->|subclass of| N15 N13 -->|subclass of| N15 N16 -->|subclass of| N8 N11 -->|subclass of| N16 N14 -->|subclass of| N16 N17 -->|subclass of| N1 N10 -->|subclass of| N17 N13 -->|subclass of| N17 N18 -->|subclass of| N1 N19 -->|subclass of| N1 N7 -->|subclass of| N19 N11 -->|subclass of| N19 N14 -->|subclass of| N19 classDef current fill:#e8f4f8,stroke:#2980b9,stroke-width:2px