| AggregateRating | The aggregate rating for the reviews requested. |
| AggregationRef | Allows a reference to be assigned by a requestor to be used when matching the responses to the requests. |
| MonthYearOfTravel | Month and year of travel. |
| QuarterOfTravel | The quarter for which the travel occurred. |
| RatingCount | The total number of questions of reponse type rating that were used to calculate the aggregate rating. |
| ReviewCount | Total number of reviews used to calculate the aggregate rating. |
| TravelerType | Identifies the type of traveler whose reviews should be included (e.g. Leisure, Business, etc.). |