Choose Your Level
Pick the difficulty that matches where you are. You can come back and try a harder level later.
Beginner
Write a Data Dictionary
Document 15 columns in a messy database table with clear definitions and business rules.
1 to 2 hours 3 criteria
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Intermediate
Design Data Quality Checks
Build a set of automated validation rules for a sales pipeline.
2 to 3 hours 4 criteria
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Advanced
POPIA/GDPR Compliance Audit
Audit a fictional company's data practices and write a compliance gap report.
3 to 5 hours 4 criteria
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