Vista - HealthDataRepository

Health Data Repository

The Health Data Repository (HDR) is a national, clinical data storehouse which supports integrated, computable and/or viewable access to the patient’s longitudinal health record. The HDR will be the authoritative source of veterans’ clinical data when complete, and currently serves as the authoritative source for data from Department of Defense (DoD) Clinical Data Repository (CDR) and for the Home TeleHealth Program.

The overarching business need for the HDR is the integration of clinical patient data from across VA, as well as from participating external health care systems. Health care providers, including direct care providers within and outside of the VA, business office personnel, researchers, and management staff all require integrated clinical patient data to provide and improve health care delivery to veterans. This functionality does not currently exist in VistA, and is a cornerstone for the next generation HealtheVet.

HDR Interim Messaging Service (IMS)

HDR Interim Messaging Service stores clinical data in a standard messaging format from all VistA systems for a select number of clinical domains.  It provides patient-centric data in a computable form to user interfaces such as Remote Data Interoperability (RDI), Clinical Health Data Repository (CHDR), Home Telehealth, and VistAWeb to support patient care.

HDR Historical (Hx)

HDR Historical stores all clinical data from VistA not contained in HDR IMS and not identified for inclusion in HDR II. It provides historical clinical data in a computable and/or viewable access form to user interfaces such as RDI, CHDR and VistAWeb to support patient care.

HDR Data Warehouse (DW)

HDR Data Warehouse stores a copy of all clinical data in the HDR and makes it available for use by those performing warehousing activities such as research and management analysis. Relieved of the requirement to support such resource intensive data runs, the HDR real-time database can maintain better performance and response times to all direct care applications and systems.

HDR II

The ultimate database solution, HDR II is a relational database that replaces HDR IMS, and stores discrete data rather than messages. When deployed, it will enable providers to obtain integrated data views and acquire the patient-specific clinical information needed to support treatment decisions. HDR II will serve as the primary source of clinical data for the legal medical record. It will maintain data supporting core business functions and serve as a platform for new and re-engineered HealtheVet applications.