The merger involved 100 million external users and 300,000 internal users, 17 systems, 458 releases, 20 million lines of code, and $140 million spent on software development.
Cutover enabled the hotel chains to properly prepare for and manage the complex set of interdependent technology changes by providing a comprehensive event orchestration capability which enabled greater control.
In order to ensure a smooth transition on an extremely high-pressured and visible event, the cutover activities were simulated multiple times. Comprehensive rehearsals were used to catch potential problems ahead of time and resolve as needed, meaning that the actual cutover weekend was a huge success. The biggest benefit was continuous improvement