The Census Hub Project can be considerated at the moment as the most advanced project where Internet technologies and SDMX solutions for data transmission get together for an ambicious goal: the data dissemination of Census 2011 results.
We analyze the Census Hub architecture, where a central Hub at Eurostat side manage the user interface, transforming all selections made by the user on the screen in an sdmx query. This query is sent to the web service at NSI side, that parses the query and transforms it in an SQL query that can be used with a data base containing census data. Depending on how many countrys are involved in the answer, the hub will query the web service provided for that country. Finally, the Hub receive all answer fron NSI's and build up a final table, putting all answers toghether. The importance of this implementation is that is a completely new system that change completely the way to disseminate and exchange official data among organizations.