OHDSI Stack Implementation Guide: Achilles, DQD, WebAPI, Atlas, and ARES for OMOP CDM Deployments

Introduction If you’re implementing OMOP CDM for your organization, you’ve likely asked: Do we need to deploy the full OHDSI stack, or just transform our data to OMOP CDM? The OMOP Common Data Model is a data standard—a specification for how to structure observational healthcare data. The OHDSI stack (Achilles, Data Quality Dashboard, WebAPI, Atlas, ARES) consists of tools built to work with that standardized data. Understanding what each tool provides helps you decide which ones your use case requires. ...

November 19, 2025 · 19 min · Salvador Rodríguez-Loya