🎓 Student Projects (College Reports) · Data Flow
Hotel Room Booking System Data Flow Diagram (Level 1)
How booking data flows between guests, the payment gateway, staff and the hotel's data stores.
Drawing diagram…
What this diagram shows
- Guest, receptionist and payment gateway as entities
- Availability check before booking
- Invoice produced at check-out
Prompt used
Level 1 data flow diagram for a hotel room booking system: the guest sends search criteria and booking details; processes are check availability, create booking, process payment, check in and check out; the payment gateway returns payment status; the receptionist records check-in and check-out; data stores are rooms, bookings, guests and payments; the guest receives a booking confirmation and an invoice.
Mermaid code
flowchart LR
subgraph EXT ["🌐 External Entities"]
G["Guest"]
PG["Payment Gateway"]
R["Receptionist"]
end
subgraph PROC ["⚙️ Core Processes"]
P1["1.0 Check availability"]
P2["2.0 Create booking"]
P3["3.0 Process payment"]
P4["4.0 Check in"]
P5["5.0 Check out and bill"]
end
subgraph STORE ["🗄️ Data Stores"]
D1[("D1 Rooms")]
D2[("D2 Bookings")]
D3[("D3 Guests")]
D4[("D4 Payments")]
end
G -->|"1. Dates and room type"| P1
D1 -->|"2. Free rooms"| P1
P1 -->|"3. Available rooms"| G
G -->|"4. Booking details"| P2
P2 -->|"5. Guest record"| D3
P2 -->|"6. Booking record"| D2
P2 -->|"7. Amount due"| P3
P3 -->|"8. Payment request"| PG
PG -->|"9. Payment status"| P3
P3 -->|"10. Payment record"| D4
P3 -->|"11. Booking confirmation"| G
R -->|"12. Arrival"| P4
P4 -->|"13. Room occupied"| D1
R -->|"14. Departure"| P5
D2 -->|"15. Stay details"| P5
P5 -->|"16. Invoice"| GRelated templates
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