
Data Quality
What is it?
Data Quality refers to the accuracy, consistency, completeness, and reliability of data within an organisation. There are several different aspects of data quality:
- Data should be accurate and reflect the real-world values it represents.
- All necessary data should be complete, with no missing information.
- Data should be consistent within itself and across different systems or datasets.
- Data should be up-to-date.
- Data should be valid and conform to the defined formats, standards, or business rules.
- Data should be unique. There should be no duplicate records unless explicitly allowed.
- Data should be relevant to its intended purpose.
Data Quality is key to using data to make critical decisions and, ultimately, derive value from it. Good Data Quality practice ensures that data is fit for its intended purpose.