- A dimension is a descriptive attribute used to categorize and filter data.
- It provides context to facts, like date, product, customer, or region.
- Dimensions are usually stored in separate dimension tables.
- In a sales dashboard, product category and customer type were key dimensions.
- They allowed users to slice and group sales measures easily.
- Dimensions often contain hierarchies, such as year → month → day.
- They help answer “by what” or “from which angle” the data is analyzed.
- Well-defined dimensions make reports more meaningful and user-friendly.
What is a dimension in analytics terminology?
Updated on January 2, 2026
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