Data Quality
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The DAMA-DMBOK2 defines Data Quality (DQ) as “the planning, implementation, and control of activities that apply quality management techniques to data, in order to assure it is fit for consumption and meet the needs of data consumers.”[1]
The term data quality refers both to the characteristics associated with high quality data and to the processes used to measure or improve the quality of data.[2]
The Strong-Wang framework (1996)[3] focuses on data consumers' perceptions of data. It describes 15 dimensions across four general categories of data quality:[4]
- Intrinsic DQ:
- Accuracy
- Objectivity
- Believability
- Reputation
- Contextual DQ:
- Value-added
- Relevancy
- Completeness
- Appropriate amount of data
- Representational DQ:
- Interpretability
- Ease of understanding
- Representational consistency
- Concise representation
- Accessibility DQ:
- Accessibility
- Access Security
