Which Epic data store is optimized for large-scale analytics separate from transactional systems?

• A. Reporting Workbench
• B. MyChart
• C. Clarity
• D. Break-glass

Answer: (C)

When you need to run large-scale analytics without affecting daily patient-care operations, you use a data store designed for heavy read queries rather than transaction throughput. In Epic, that is Clarity. Clarity acts as an analytics-focused data warehouse that copies data from the transactional Epic environment into a structure optimized for reporting and complex queries. It’s typically updated through ETL processes on a schedule, providing a stable, read-only source for dashboards, analytics, and data extraction without loading the live system. The other options serve different purposes: Reporting Workbench is for operational reporting within the live system, MyChart is a patient portal, and Break-glass is an emergency access feature.