To survive an organization must develop a strategy. To develop a successful strategy it must be capable to forecast the future circumstance. This is why nowadays business intelligence applications are essential for the success of a business. The decision support system is the eye through which the business strategist can look out on the organization’s environment and detect behavior trends. Making decision on poor quality data can dramatically affect the strategy of the organization. This white paper addresses issues concerning data quality from business intelligence applications, the sources of poor quality data and possible ways to overcome these problems.

business intelligence, data warehouse, data quality, ETL, data mining