The document discusses SITA Airport IT services at Düsseldorf Airport. It provides an overview of Düsseldorf Airport, noting that it handles over 21 million passengers annually and is the 3rd largest airport in Germany. It then discusses how SITA Airport IT provides managed IT services, infrastructure services, carrier services, and business services to tenants at the airport. Specific examples are given of how SITA has helped the airport increase revenues through new concepts like seamless travel initiatives using near field communication technology, RFID technology, and license plate recognition. Additional revenue streams have been created through new products like a block parking system at the airport.