This article describe about Data Quality, which is a multi-dimensional measurement of the adequacy of a particular datum or data sets. It is an essential characteristic that determines the reliability of data for making decisions. In business, data quality is measured to determine whether or not data can be used as a basis for reliable business intelligence and for making organizational decisions. Data Quality research involves investigating and describing various categories of desirable attributes of data. These lists commonly include accuracy, correctness, currency, completeness and relevance.