At the current time, there is no definitive methodology for distinguishing between heavy and light users. However, a clear distinction in the purchase volume between the two segments seems clearly evident (e.g. Goldsmith, 2000). Many options, all related to purchasing activity, exist for creating segments including volume, spending, experience, consumption time, and occasions. For example, buyers may be classified as heavy users if they spend more than others, buy more product units than others, have experience with more products than others, participate for longer periods than others, and purchase on more occasions than others.