# Data models

A data model is a layer of the Reporting and Analysis database that describes the data objects, structure, grouping, data relationships, and security. The Reporting and Analysis module uses one or more data models to make the data in the Reporting and Analysis database available for reports.

Two data models exist for every InForm study.

Data models

Data model | Description
--- | ---
Trial Management data model | Describes only the study management portion of the Reporting and Analysis database. Note: This is also called the Operational model.
Clinical data model | Describes the clinical and study management portions of the Reporting and Analysis database.

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