The Structured Data Transformation Model (SDTM) is a standard for the structure and content of clinical trial tabulation datasets that are submitted as part of a product application to a regulatory authority such as the United States Food and Drug Administration (FDA).
This tool is an interactive browser for the SDTM data model that displays the polyhierarchy of SDTM classes and domains as a tree. You can browse the attributes of each class and view their descriptions by clicking on the purple links. The structure of classes is rendered as a TypeScript-like type definition. You can navigate to the referenced classes by following the blue links.