Problem Description
Design an online booking system capable of managing reservations for various resources such as hotel rooms, meeting rooms, or appointment slots.
Requirements
Your design must cover the following aspects:
- Core Flows: Implement the fundamental operations including searching for availability, creating a booking (reserving a slot), confirming a reservation, canceling a booking, and modifying an existing booking.
- Correctness: Ensure the system rigorously prevents double-booking, especially under conditions of high concurrent access.
- Scale: The system must be designed to support a large number of concurrent users and manage an extensive inventory of properties, rooms, or time slots.
- Latency: Availability queries should be processed and returned with low latency.
- Reliability: The system must be robust, capable of handling retries, partial failures, and ensuring idempotency for critical operations.
Clarifications to Address
As part of your design discussion, explicitly address the following:
- The specific consistency guarantees required for both availability checks and the booking creation process.
- Whether the system needs to support a "hold" mechanism for temporary reservations with an expiration policy.
- How the inventory will be modeled (e.g., per day, per time slot, or per specific resource).
Your solution should include proposed APIs, a data model, a high-level architecture, and a discussion of the inherent tradeoffs.
AI interview prep
Core dilemma
Balancing strong consistency requirements for preventing double-booking (writes) with high availability and low latency for availability searches (reads) at massive scale, while ensuring overall system reliability in a distributed environment.
3 tradeoffs and 3 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Problem Description
Design an online booking system capable of managing reservations for various resources such as hotel rooms, meeting rooms, or appointment slots.
Requirements
Your design must cover the following aspects:
- Core Flows: Implement the fundamental operations including searching for availability, creating a booking (reserving a slot), confirming a reservation, canceling a booking, and modifying an existing booking.
- Correctness: Ensure the system rigorously prevents double-booking, especially under conditions of high concurrent access.
- Scale: The system must be designed to support a large number of concurrent users and manage an extensive inventory of properties, rooms, or time slots.
- Latency: Availability queries should be processed and returned with low latency.
- Reliability: The system must be robust, capable of handling retries, partial failures, and ensuring idempotency for critical operations.
Clarifications to Address
As part of your design discussion, explicitly address the following:
- The specific consistency guarantees required for both availability checks and the booking creation process.
- Whether the system needs to support a "hold" mechanism for temporary reservations with an expiration policy.
- How the inventory will be modeled (e.g., per day, per time slot, or per specific resource).
Your solution should include proposed APIs, a data model, a high-level architecture, and a discussion of the inherent tradeoffs.