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Good data has following attributes
- Accurate : No duplicate, correct format, no missing value
- Complete : Data serves the purpose. Everything is readily available in the data.
- Reliable : Trusted (No bias involved in data collection, No artificial data was entered )
- Relevant : Data is free from information that does not add value to the purpose.
- Timeliness : Availability, accessibility, up to date
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Data quality is a measure of the condition of data based on factors such as:
accuracy,
completeness,
consistency,
reliability and
whether it's up to date.