People often want Wally to come and speak to their group or work with them around strategic issues of planning for the future. When that happens, they always want to talk about trends.
Trends are a way to describe a change over time.
In order to have a trend, you have to have the three ds. A trend must have data. There must be some way to measure the trend or it isn t really a trend. Sometimes that can be a simple measurement like up or down. Trends must have direction.