Data Quality

The data quality occurs on the data. It's then a central element of all database and you will find it in two main domains :

• The management of non-transactional data with the Master Data Management (MDM)
• The management of transactional data during the loading process.

The goal is to improve all the Data Quality - Metrics. They are all often coupled to the datawarehouse properties.

The appearance of a hole in the earth's ozone layer over Antarctica, first detected in 1976, was so unexpected that scientists didn't pay attention to what their instruments were telling them; they thought their instruments were malfunctioning. National Center for Atmospheric Research

• Data Quality - Cycle Overview
• Data Quality - Data Profiling
• Data Quality - Data Rules
• Data Quality - Data Correction

• Data Quality - Metrics
• Data Quality Scorecard (Monitoring)

• How to access and retrieve data from a directory website

• Data Quality - Glossary
• Data Quality - Role (data steward)