Software Design

Event Ticketing: Venues, Tiers, and QR Passes

UML Class Diagrams · made in Skemio

Class diagram showing Venue composing SeatingTier, Event producing Ticket, and Ticket holding a single-use QrPass with scan validation.
Class diagram showing Venue composing SeatingTier, Event producing Ticket, and Ticket holding a single-use QrPass with scan validation.
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What it shows

  • Venues partition capacity into defined zones with dynamic seat tiers.
  • Issued passes encapsulate single-use cryptographic tokens for entry gates.
  • Composition ensures ticket lifecycles remain tied to scheduled events.

The takeaway

Model validation state separately from seat reservations to stop reuse.

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