Industry
Hospitality software.
A hotel sells the same finite rooms through a dozen channels at once, and every channel caches. Overbooking is rarely a commercial choice — it is usually the observable symptom of inventory synced on a timer.
What shapes the architecture
Constraints that are specific to this sector.
These are the things that would be wrong or meaningless if written about a different industry. They are design inputs, not compliance paperwork added at the end.
- 01
Rate and availability parity across channels
The same room is listed on OTAs, metasearch and your own site. Every channel holds a cached copy, so the sync interval is precisely the size of your overbooking window.
- 02
The PMS is the system of record, and it is on-site
Front desk, housekeeping and billing usually live in an on-premise property management system. Any guest-facing product integrates with it rather than replacing it, and must tolerate it being unreachable.
- 03
Room allocation is not room-type allocation
Guests book a type; operations assign a specific unit. Conflating the two breaks housekeeping sequencing and maintenance blocks in ways staff work around manually.
- 04
Stay dates are ranges, not timestamps
Availability is an interval-overlap problem across a date span, with different rules for arrival and departure day. Modelling a stay as two dates and querying naively produces off-by-one bugs that reach real guests.
Typical work in hospitality.
- Direct booking engines
- Channel management and distribution
- Property management integrations
- Guest messaging and pre-arrival
- Housekeeping and maintenance workflows
- Revenue and rate management support
What it has to talk to.
- PMS (Opera / Cloudbeds)
- OTA channel managers
- POS systems
- Door lock APIs
- Payment gateways
Integration surfaces are where most sector projects actually fail. We treat each one as a boundary with its own translation layer, rather than letting an external format leak into the domain model.
Other sectors
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