echnology. 6.5.2 Family of UMTS Users In the process of identifying the potential 3G users we can segment the subscriber body based in the population distribution, e.g. business, residential and mass market. We can further break these groups down into heavy and light users. However, our interest lies in finding who does actually correspond to each group and how much traffic they generate. 6.5.2.1 Business Subscribers Business users will follow their enterprises and set the pace according to the wealth of resources and activity intensity. While a simple distinction would fall into large, me- dium and small corporations, it will not identify the true nature of business users. Thus, for all practical purposes we will group (non-exhaustively) into: Information technologist involved in generating or transferring all types of mod- ern information in communications and computers, software, etc. Designers and producers working in manufacturing, heavy industry, product lines, etc. Distributors and retailers active in marketing, sales, product distribution Financial and legal people banking and financing work, legal world activities, The classification above aims to group activities while identifying the type of business subscribers will foster. Then, based on the profile we can see the volumes of traffic and demands they will generate. 6.5.2.2 Residential Subscribers We can characterize these subscribers by their life style. The latter in turn will provide a window to the amount of traffic they will generate. To make it simple and logical we can classify them into: communicators those continuously involved in social activities, communicating at all times; always prepared keeping up with the trends and having all means of modern communications; world travellers relocating often, an international citizen; well to do the wealthy and established pillars of the community owning the na- tional capital. The UMTS Network and Radio Access Technology 6.5.2.3 Mass Market Subscribers All the remaining population groups not listed in 