Trends help you measure the improvement in the quality of your data over a period of time. For example, in a merger between two companies (Company A and Company B), company A needs to migrate customer data in its system from company B. It will run a scorecard on the data at the beginning of the process to see the quality and may thereafter do this scoring after every cleansing. Trends plot a chart based on your recent runs or for a specified date range to give you a clearer picture on the improvement index.
To view the trend: