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DATA-SCIENCE-FUNDAMENTALS5 MIN READ

Sort Data Quality Issues by Dimension

Classify data quality issues so the fix targets the right failure mode rather than applying generic cleanup.

sort-buckets stage-strip common-trap-callout Sort each data issue into the quality dimension that best describes the failure mode. Completeness Validity Consistency Timeliness Lineage 27% of company_size values are blank for paid-social leads Country code contains USA, United States, and 840 in the same field ARR differs between billing and CRM for the same account Previous day product events arrived after the executive dashboard refreshed Nobody can explain how raw contract lines become net revenue Customer age contains negative values Enterprise segment is blank for newly imported accounts The dashboard labels data as current but uses last Friday snapshot

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