Design a Hotel Reservation System

1. Problem Statement

2. Architecture Discussion Map

Use this as one discussion aid, not a single correct answer. Your design should follow from the requirements, scale, and trade-offs you establish.

graph LR
    A["Design a Hotel Reservation System"]
    A --> F1["Data Modeling for Availability Rooms vs Dates"]
    A --> F2["Handling Date Range Overlaps efficiently"]
    A --> F3["Concurrency Double Booking prevention"]
    A --> F4["Search Indexing Geospatial + Date availability"]

3. Key Focus Areas

• 1
  Data Modeling for Availability (Rooms vs Dates)
• 2
  Handling Date Range Overlaps efficiently
• 3
  Concurrency (Double Booking prevention)
• 4
  Search Indexing (Geospatial + Date availability)

4. What the Interviewer Looks For

The interviewer probes these areas, and the report grades the interview against them.

• Requirements, date semantics, and capacity
• Inventory data model
• Booking concurrency and correctness
• Search and availability serving
• Lifecycle, reliability, and evolution