Changes and data contracts
Silent change
A new enrolment status reaches the data overnight, and each side of the university saw only half of the change.
Topics › Data quality and change › When things go wrong
Make the call
Ten situations about testing numbers: when to warn, when to stop, which test catches what, and where to fix it. Decide what you'd do; each answer explains why, and points you to the lab that covers it. Your answers stay in this browser.
Scenarios
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Where next
Start here
The Inner Life of Data
Follow one enrolment from a tap on a phone to a decision, through Databricks and dbt.