The theme for the XVIIth Congress held in Halifax, Nova Scotia from 19th – 21st October was Big Data for Productivity: Everything Changes. The Congress was held in partnership with the Big Data Congress and was a big success – importantly establishing the productivity impact of Big Data … but recognising the context in which Big Data needs to be viewed and analysed if that impact is to be maximised. A brief report on the Congress, together with the Congress Declaration is available in the 17th Congress Page.