Design a collaborative spreadsheet
Design a Collaborative Spreadsheet Service
Design an online spreadsheet service akin to Google Sheets, enabling multiple users to concurrently open and edit the same workbook in real-time. The system must ensure all connected clients remain synchronized, gracefully handle client disconnects and reconnects, and safely resolve simultaneous edits without data loss or corruption.
The design should include a concrete API specification, detailing essential request parameters for key operations.
The discussion should cover the following aspects:
Core Requirements
- Functional and Non-Functional Requirements: Define the essential features and quality attributes of the system.
- Data Model: Design the schema for workbooks, sheets, individual cells, revisions, and operations.
- Session Management and Real-time Updates: Detail how user sessions are managed and how real-time updates are delivered to all active clients.
- Conflict Resolution: Propose a strategy for resolving simultaneous edits to the same data.
- Structural Edits: Address the handling of row and column insertions and deletions.
- Persistence and Recovery: Describe how data is persisted, how snapshots are taken, and mechanisms for replaying operations and recovering state.
- Formula Recalculation: Explain how formulas are processed and recalculated efficiently.
API Design
- External APIs: Design APIs for core interactions, including opening a session, fetching a sheet's content, submitting edits, subscribing to real-time updates, and catching up on changes after a client reconnects.
System Qualities
- Scaling: Discuss strategies for scaling the service to accommodate a large number of users and workbooks.
- Latency: Address how to minimize latency for real-time interactions.
- Observability: Outline how the system's health, performance, and operational state will be monitored.
AI interview prep
Core dilemma
Achieving real-time, highly consistent, and fault-tolerant collaborative editing across potentially many concurrent users, while ensuring data integrity, low latency, and efficient formula recalculation for complex spreadsheet interdependencies.
3 tradeoffs and 3 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Design a collaborative spreadsheet
Design a Collaborative Spreadsheet Service
Design an online spreadsheet service akin to Google Sheets, enabling multiple users to concurrently open and edit the same workbook in real-time. The system must ensure all connected clients remain synchronized, gracefully handle client disconnects and reconnects, and safely resolve simultaneous edits without data loss or corruption.
The design should include a concrete API specification, detailing essential request parameters for key operations.
The discussion should cover the following aspects:
Core Requirements
- Functional and Non-Functional Requirements: Define the essential features and quality attributes of the system.
- Data Model: Design the schema for workbooks, sheets, individual cells, revisions, and operations.
- Session Management and Real-time Updates: Detail how user sessions are managed and how real-time updates are delivered to all active clients.
- Conflict Resolution: Propose a strategy for resolving simultaneous edits to the same data.
- Structural Edits: Address the handling of row and column insertions and deletions.
- Persistence and Recovery: Describe how data is persisted, how snapshots are taken, and mechanisms for replaying operations and recovering state.
- Formula Recalculation: Explain how formulas are processed and recalculated efficiently.
API Design
- External APIs: Design APIs for core interactions, including opening a session, fetching a sheet's content, submitting edits, subscribing to real-time updates, and catching up on changes after a client reconnects.
System Qualities
- Scaling: Discuss strategies for scaling the service to accommodate a large number of users and workbooks.
- Latency: Address how to minimize latency for real-time interactions.
- Observability: Outline how the system's health, performance, and operational state will be monitored.