Abstract
This paper describes international collaboration activities to help the official statistical community to better understand the phenomenon of ``Big Data'', and how it might impact on statistical production. This work is taking the form of annual projects, overseen by the High-Level Group for the Modernisation of Statistical Production and Services, a group of ten heads of national and international statistical organisations. The results obtained during 2014 are presented, and the paper looks forward to the planned activities in 2015.