AQUAWARE: A Data Quality Support Environment for Data Warehousing

Abstract

In the current economy the Data Warehouse constitutes a fundamental tool to support decision making processes. However, to take better advantage of enterprise information assets, it is necessary to rely on the information provided, or at least, that its reliability degree can be appropriately evaluated and considered during decision making. In this context, data quality management assumes special importance, as it is both complex and essential. This paper presents a computational environment named AQUAWARE to be used as infrastructure for supplying quality information to Data Warehousing client tools. Queries performed through AQUAWARE represent an advance when compared to conventional analytical queries, as it enables the end user to evaluate to what extent it is safe to trust in the returned information, providing more reliability to the decision making process. 1