Software Design

Modeling Librarian Overrides & Account Holds

Use Case Diagrams · made in Skemio

Use case diagram for Late Fee Waiver and Account Holds with Student and Branch Librarian actors connected to payment, waiver, and hold clearance use cases.
Use case diagram for Late Fee Waiver and Account Holds with Student and Branch Librarian actors connected to payment, waiver, and hold clearance use cases.
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What it shows

  • Automated hold triggers fire synchronously on overdue fee thresholds
  • Branch librarians retain conditional override power with mandatory audit logs
  • Extend relationships cleanly represent exception-based fee waivers

The takeaway

Represent administrative overrides as extensions of payment flows to keep audit paths intact.

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