Data Flow

Hotel Reservation System: Booking Pipeline

Data Flow Diagrams (DFD) · made in Skemio

Data flow diagram illustrating hotel room availability search, payment deposit gateway, inventory commit, and guest notification.
Data flow diagram illustrating hotel room availability search, payment deposit gateway, inventory commit, and guest notification.
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What it shows

  • Inventory queries lock selected room allotments during active checkout.
  • Payment gateways confirm authorization prior to locking final reservations.
  • Booking confirm events update room inventories and dispatch guest emails.

The takeaway

Temporary inventory locks prevent double bookings while payment webhooks finalize reservations.

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