Poor data quality costs businesses significantly through wasted labor, lost productivity and direct financial losses. Rapid changes in circumstances like addresses, phone numbers, jobs and relationships mean that master data changes at a rate of around 2% per month. Siebel's data management solution and new data quality products from Oracle help address these issues through comprehensive data profiling, cleansing, matching and enrichment capabilities. Regular data stewardship is important for ongoing monitoring and governance to maintain high quality master data.