Hierarchies and Drill-Down Paths: You must define the natural relationships within the data (e.g., Day → Month →Year, or Product → Subcategory → Category) to enable users to traverse from summarized data to detailed data.

Additivity and Semi-Additivity: You must determine which numeric attributes can be summed across all dimensions and which can only be summed across specific dimensions (like time).

Descriptive Attributes: You must identify rich, textual, and verbose fields (rather than cryptic codes) that serve as the primary source of query constraints, filtering, and report labels.

Normalization to Third Normal Form (3NF): You must ensure that the dimension table removes all transitive dependencies and redundant data to optimize storage space and maintain strict transactional integrity.