Answer:
benchmarking
Step-by-step explanation:
Benchmarking in a company is a practice of comparing the different business processes as well as performance metrics compared to industry bests and the best practices performed from the other companies. It is the process of evaluating one's performance and service with the standards.
In the context, when Marriott asks its customers to review and comment on their services and also inform them about the practices performed by their competitors, it is trying to benchmark their company.