SDMX (Statistical Data and Metadata eXchange) standardises the way data are organised and exchanged and provides international guidelines on how to shape the data.
SDMX provides:
A logical model to describe statistical data, together with guidelines on how to structure the content
A standard for automated communication from machine to machine
A technology supporting standardised IT tools that can be used by all parties involved in the data exchange and processing.
More info on SDMX can be found on:
Eurostat SMDX info space, where you can find text and links about SDMX features, training courses and tutorials, events and implementation projects.
SDMX web site at sdmx.org, providing the technical standard and guidelines
Statistical Data and Metadata Exchange