What is a semantic model in the data warehouse experience?

• A. A semantic model is a physical data model that describes the structure of the data stored in the data warehouse.
• B. A semantic model is a machine learning model that is used to make predictions based on data in the data warehouse.
• C. A semantic model is a business-oriented data model that provides a consistent and reusable representation of data across the organization.
• D. A semantic model is a conceptual outline used for data lineage documentation.

Answer: (C)

A semantic model is a business-oriented data model that provides a consistent and reusable representation of data across the organization. In a data-warehouse experience, it sits above raw data structures and translates them into familiar business terms—dimensions such as Customer, Product, and Time, with metrics like Total Sales or Average Order Value—along with defined relationships, hierarchies, and aggregations. This layering ensures that analytics, reports, and dashboards all reference the same definitions, reducing ambiguity and inconsistency. It also strengthens governance and enables self-service BI because analysts work from a stable, reusable view even as underlying sources change. It’s not about how data is physically stored, nor is it a machine learning model or merely a data lineage outline; its purpose is to align data representation with business meaning for reliable and scalable analytics.