OMOP CDM stands for the Observational Medical Outcomes Partnership Common Data Model. It is a standardized data model developed by the Observational Health Data Sciences and Informatics (OHDSI). The primary purpose of OMOP CDM is to provide a common framework for organizing and harmonizing diverse healthcare data from various sources.

OMOP CDM features a standardized structure that allows researchers to perform consistent analyses across different databases, making it easier to aggregate and compare findings. This model facilitates large-scale, federated analyses of observational health data, supporting research efforts to generate real-world evidence for healthcare decision-making and improving patient outcomes.