---
title: "Semantic Mapping"
slug: "glossary-semantic-mapping"
updated: 2023-03-03T18:04:54Z
published: 2023-03-03T18:04:54Z
canonical: "docs.ursahealth.com/glossary-semantic-mapping"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ursahealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Semantic Mapping

At this layer source data columns are type cast, transformed, and mapped to Ursa’s standard naming convention. The row count of the source data objects does not change at this layer. Semantic mapping objects are created using the semantic mapping object type.