Thanks to OTDS tour operators and other provider may decrease the volume of their data delivery to distribution systems significantly: In practice sizes for OTDS-files reach no more than 10% of the size for INFX-deliveries containng the same amount of offers. As with OTDS rather price- and product rules than complete offers are expressed, considerably more offers can be transferred in even smaller files. The effect on transfer- and loading times is correspondingly positive – while at the same time data quality is pushed to a higher level.