Information Quality Decay Rate

Information quality decay rate - The rate, usually expressed as a percent per year, at which the accuracy of a data collection will deteriorate over time if no data updates are applied, for example, (1) person age decay rate is 100% within one year, decaying at a rate of approximately 1.9% per week; (2) if 17% of a population moves annually, the annual decay rate of address is 17%).

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml , 30-Jan-2009 10:08