... also enter 80 percent of all vendor invoices. Based on the relatively low number of “power” users, we can deduce that there is a large proportion of occasional users who enter invoices only sporadically. Reasons for this might be that work is distributed among several employees or that organizations have a large part-time staff. When a system has too many occasional users, processes become inefficient and must be examined. Think it’s time you took a closer look at your processes?