Business Case 4.2: Carnival Seeks to Keep Passengers Happier at Sea with IoT, NFC and Edge Computing. 2.1. Why did Carnival Cruise Line think the Ocean Medallion would help increase their cruise sales? 2.2. What is the services component of the Ocean Medallion called and what technologies does it use? 2.3. On how many Carnival cruise ships is the Ocean Medallion used? 2.4. What services does the Ocean Medallion Class offer to passengers? 2.5. What benefits do passengers enjoy from using an Ocean Medallion?.