Accuracy of Data Input

Paper Summary:

This paper reviews and discusses the various methods of data input. The paper takes a look at the accuracy, convenience and quality of these methods of data input, focusing primarily on the accuracy of each.

From the Paper:

"When dealing with printed questionnaires, keyboard entry is the best choice for data input. Unlike handwriting, which most of the times is unclear and therefore severely affects the accuracy of data input, the keyboard method avoids uncertainty. Among this method's advantages, one of the most important is that most people are familiar with using keyboards and with the key's layouts, so there is no or little training required for using keyboards. Also, an optical mark recognizer can be used. Optical mark recognition is a fast and accurate data input method that basically refers to capturing data by contrast reflectivity at predetermined positions on a page. This data input method presents several advantages, like the wide range of application. It can be applied for community surveys, consumer surveys, tests and assessments, evaluations and feedback, data compilation, product evaluation, inventory counts, membership subscription forms, and other printed material. Also, the optical mark recognizer identifies rapidly the answers marked by users and calculates scores. However, this method has its disadvantages also: it is not suitable for large amounts of text, or some data can be lost in the scanning process. "

Sample of Sources Used:

• Dickinson, Holly & Star, Jeffrey, L., Data Input (course) 1997. University of California at Santa Barbara. Retrieved March 13, 2007 from http://www.geog.ubc.ca/courses/klink/gis.notes/ncgia/u07.html#SEC7.5
• Optical mark recognition (2007). Wikipedia, the free encyclopedia. Retrieved March 13, 2007 from http://en.wikipedia.org/wiki/Optical_mark_recognition#Applications.
• Computer Assisted Telephone Interviewing (2007). Wikipedia, the free encyclopedia. Retrieved March 13, 2007 from http://en.wikipedia.org/wiki/Computer_Assisted_Telephone_Interviewing.
• Handheld technology: the basics. University of North Carolina. Retrieved March 13, 2007 from http://www.learnnc.org/lp/pages/handheld0508-2.
• Hard disk (2007). Wikipedia, the free encyclopedia. Retrieved March 13, 2007 from http://en.wikipedia.org/wiki/Hard_disk.

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