i- ronment, which is separate for private people and enterprises. Understanding Changing Telecommunications - Building a Successful Telecom Business Entertainment Education Enlightenment Social relations (information) Consumption Transport Professional Figure 2.4 Potential areas for time and money savings The private and professional environment can be illustrated by means of Figure 2.4. The private sector is not homogeneous. It can be segmented in various ways, two of which will be described in more detail as examples of possible segmentations. The number of possible segmentations is virtually unlimited. Let us start with a very simple approach, which is exclusively based on the 'common life stage' segmentation. This segmentation was applied by Ericsson Australia as part of a comprehensive computer program for modern network design. The segments are: 1. Singles. Singles are people of all ages, although dominantly young people not yet settled in a fixed relation and where the friends are important. This group is also called 'Free Ones 1' (Copenhagen Institute for Future Studies, CIFS). 2. Couples. Couples focus more on the internal relation and home although still main- taining relations with friends. 3. Couples with children. This group focuses even more on internal relationships than the time without children. Time has now, if not before, become a critical factor. Single parents. The children have left home. Freedom and economy improve. They now want to do a lot of things they did not have time for before. This group is also called 'Free Ones 2' (CIFS). 65+. Retired from regular work, but may take on temporary or project tasks 'for fun'. New generations of '65+1 are expected to have good health and to be very active. They will increasingly take advantage of the emerging range of new services. Users within each segment have a lot in common, but due to personal life styles, values and ambitions the variations within each segment may be considerable. One user may prefer a quiet home life, another within the same s