where the thickness of the arrows that connect the strategic
objectives reflects the explanatory value, which is the
magnitude that a change in one KPI impacts another KPI,
that one strategic objective’s KPI has on the dependent
KPIs it is presumed to influence in other strategic objectives.
The thickness validates the quality of the selected
KPIs. With higher correlation (i.e., greater thickness),
there is insight to where spending provides a higher return
on investment (ROI).