Data, products and quality
Start with six policies in memory. Define requirements, find errors and add a recipe.
Work through each module in the displayed order. Prerequisite links lead to the earlier modules you need.
H01 Understand a small policy deliveryRecognize the three columns of our first dataset.H02 Turn data into a product definitionDistinguish data from a reusable definition.H03 Run without saving dataDistinguish a product, a run result and an output table.H04 Agree on columns and keysExpress the expected table structure as a contract.H05 Add a business ruleRequire nonnegative premiums.H06 Inspect a failed deliveryFind the exact failing row.H07 Correct data without redefining the productReplace a source while keeping its rules.H08 Define a recipeStore preparation as a reusable object.H09 Attach a recipe to a productCompose a definition and inspect its plan.H10 Select rowsCreate a deliberate subset.H11 Select columnsDeliberately narrow the output.