There is no requirements list
The new system is picked on the basis of a demo, a price or a recommendation. What the property actually needs — half board, groups, multiple languages, interfaces — is written down nowhere. The gaps only surface after go-live.
Before any demo, write a list: what the system must do, what would be nice, what does not matter. Derived from your own operation, together with the team. Every demo is checked against the list, not against a gut feeling.
