Software Design

Use Cases for Last-Mile Courier Deliveries

Use Case Diagrams · made in Skemio

Use case diagram for Courier Package Handoff system showing Courier, Recipient, barcode scanning, OTP verification, and exception routing.
Use case diagram for Courier Package Handoff system showing Courier, Recipient, barcode scanning, OTP verification, and exception routing.
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What it shows

  • Package barcode scans trigger immutable milestone state changes
  • One-time passwords (OTP) act as cryptographically secure handoff proofs
  • Exceptions branch into neighbor drop-offs, safe drops, or depot returns

The takeaway

Design last-mile workflows around delivery exceptions, not the happy path.

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