A hotel chain has acquired a number of properties in the same geographic location. At present, customers wishing to locate available rooms are first presented with a list of hotels in the area. The customer selects the hotel, and then the individual hotel system is queried to determine room availability on the required dates. The marketing department has suggested a new approach in which the customer simply indicates the geographic area of interest and is given the availability for all rooms in the area. All communications between the systems in the proposed design will be implemented using SOAP over JMS. Which two new requirements should be considered by the architect? (Choose two.)