Goal Line

A goal line is a horizontal line on a chart marking a target value or an expected threshold, so the gap between the current state and the goal is visible at a glance.

A goal line turns a number into a judgment: a chart showing only the value says 'where we are', a goal line adds 'relative to where we should be'. That visual reference lifts reading a chart from description to decision, because the eye instantly sees whether we are above or below the line. Its use goes beyond a sales target: a goal line can be a health threshold (the good limit of a speed metric, say) so that whenever the data drops below it, there is a problem. The common trap is an arbitrary, baseless goal line; a target drawn from a ceiling of wishes rather than from data and real capacity produces only despair or neglect. A good goal line comes from either a real commitment or a standard threshold, and is read beside the trend, not instead of it.