where the thickness of the ar rows that connect the st r ate-g ic objectives reflects the explanator y value, which is the
mag nitude that a change in one KPI impacts another KPI,
that one st r ateg ic objective’s KPI has on the dependent
KPIs it is presumed to influence in other st r ateg ic objec-tives. The thickness validates the qualit y of the selected
KPIs. With hig her cor relation (i.e., g reater thickness),
there is insig ht to where spending prov ides a hig her retur n
on invest ment (ROI).