Quick Reference for Dimensional Review
Recall the key questions for reviewing a dimensional warehouse model.
What question must a dimensional model review ask first? Everything else depends on it. What does one row represent? Grain determines valid joins, measures, uniqueness tests, and consumer interpretation. What makes a dimension conformed? It has the same meaning and keys across more than one business process. Conformance lets users compare facts such as revenue, usage, and support by the same Customer, Product, Date, or Region. Current attribute or event-time attribute? Choose based on the decision's time meaning, not developer convenience. "Can we just make one wide table so analysts do not need joins?" A stakeholder wants speed and simplicity…
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