Line reports plot individual data points to show how the value
of one or more items changes over time.
The value of an item at specific dates or times is displayed as data points connected by
horizontal lines. Values along the horizontal axis of the line chart represent the time
measurement (years, hours, minutes, milliseconds, and so on). Values on the vertical axis
represent the changes to the items being monitored. Users with the report_admin role can define
the ranges that are used in a line chart report.
For example, you can create a line report for incident counts, to show how the number of
incidents changes over time. The incident count often increases during the first few months after
a product upgrade is deployed. Over time, the number of reported incidents decreases as users
become more accustomed to the changes in the product. This figure shows the number of incidents
per caller over time.