Start by clarifying requirements and scale, then design a hierarchical data model with versioned menus and a CDN-based distribution system. Address offline support via local caching and time-based rules, and discuss trade-offs between consistency and availability.
Pro tip: Emphasize that menu updates should be atomic and versioned to avoid partial updates, and consider using a pub/sub system for real-time propagation to devices.
Ask about number of devices, update frequency, localization needs, and offline duration. Establish consistency vs. availability trade-offs.
Define a versioned menu schema with localization support and time-based rules. Use a central service with a database and version control.
Use a CDN to distribute menu bundles to edge locations. Devices pull updates periodically or via push notifications, with local caching for offline use.
Devices store menus locally and switch based on local time and date. Implement fallback to last known good menu if offline.
Ensure atomic updates via versioning and checksums. Monitor device health and update success rates, with rollback capabilities.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.