The hidden problem
Two reports can show the same metric name and still disagree, simply because each was calculated differently. These discrepancies quietly undermine confidence in the data.
Building a data dictionary
A data dictionary documents each metric, its calculation, its source, and its owner. It becomes a shared reference that keeps everyone aligned.
- Name and plain-language description
- Exact calculation or formula
- Source system and refresh cadence
- Owner responsible for the definition
Key takeaways
- Undocumented definitions lead to disagreement.
- A data dictionary creates a shared reference.
- Clear definitions build lasting trust in reporting.
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