Primary customers are medical researchers at the University of Iowa and graduate students. Over 1000 projects have been entered since 1990. Personal computers connected to the College of Public Health local area network server are used for the data entry. Staff consisting of University of Iowa students are employed part time.
Monthly billing is done via university blue requisition forms.
Personal checks from graduate students are also accepted. All data is normally verified. The method used is a double blind system. One student enters the data. Once a batch is completed, a second student will enter the data a second time with the data entry software comparing each keystroke with the first pass.