Use the PDCA cycle to manage data quality as continuous improvement rather than one-off remediation.
The move: make quality improvement observable. Plan the control Start with one defect pattern and one proposed prevention or detection rule. Planning means defining the target field, the expected rule, the current defect rate, and what would count as improvement. Do it small Run the change on a limited source, product line, or date range. Small tests reduce risk and expose side effects before a rule blocks a legitimate business process. Check and act Checking is not a vibes review. Compare the baseline and post-change defect rates, inspect false positives, and ask whether the control created new friction. Acting means…
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