The Donau-Iller-Nahverkehrsverbund (German for Danube-Iller Local Transport Association, abbreviated DING, the German word for THING) is a regional transport cooperative that coordinates tickets and fares among all transport operators in the area of the city of Ulm and the districts of Alb-Donau, Biberach and Neu-Ulm.
References
Donau-Iller-Nahverkehrsverbund Wikipedia(Text) CC BY-SA