UN, Eurostat, IMF, OECD, UNCTAD, UNWTO and WTO (2012), Manual on Statistics of International Trade in Services. Para. 3.63.
Method of ordering and/or delivering products by electronic means, such as through the internet or other computer-mediated networks. In principle, charges for electronically delivered products are included in services, while goods ordered by electronic means but supplied across the border are generally classified as goods (except that products obtained with a license to use, rather than through change of economic ownership, are included in services)