System Diagrams
A consolidated set of diagrams for the thesis appendix. Each is also discussed in context elsewhere in this site (linked below).
Use-case diagram
Context diagram (DFD Level 0)
See Data Flow.
Entity–relationship diagram
The full ERD with attributes is on the ER Diagram page. Simplified view:
Sequence: QR scan
The detailed version with validation gates is on the QR Attendance Flow page.