Ratings of noticed importance individual factors
for information system successfulness vary from
person to person because everyone has a different
level of measurable standards and level of personal
importance. The process of ranking is a way to
eliminate such individual differences. It generates
order which presents relative levels of importance.
Information system management should use only
the order by importance of successfulness factors
of information system to identify relative meaning
of one factor among others. It is shown that the
order of importance gathered from users is
different from the one gathered from information