Interoperability of health systems using OpenHIE

  • The fundamental basis of interoperability is in harmonizing the context with which information is collected in so that it’s broadly reusable to a much larger set of stakeholders. The OpenHIE architecture supports interoperability by creating a framework that maximally leverages health information standards, enables flexible implementation by country partners, and supports interchangeability of individual components.
  • The external systems are a diverse group of actors that leverage the health information exchange to improve the quality of care by using higher quality and more timely data to support their activities. These systems include mobile messaging tools (SMS/IVR), electronic medical records, laboratory or stock management systems, and monitoring and evaluation tools.
  • The Interoperability Layer (IL) is the component that enables easier interoperability between disparate information systems by connecting the infrastructure services and client applications together. An interoperability layer receives transactions from external systems and coordinates interaction between components of the HIE and provides common core functions to simplify the interoperability between systems.
  • The Terminology Services (TS) component of the Open HIE Architecture provides a centralized source for the HIE’s standards and definitions, including terminologies, ontologies, dictionaries, code systems, and value sets. Other HIE components can use these standards and definitions to normalize clinical data and achieve consistent aggregation and reporting.
  • The Client Registry (CR) supports the unique identification and management of patient identities. In order for the details of what specifically happens during a health service event to be understood universally, each client or patient needs to be represented in a standard way.
  • A Shared Health Record (SHR) enables the collection and storage of electronic health information about individual patients in a centralised repository which is capable of being shared across different healthcare settings.
  • The Health Management Information System (HMIS) component – stores and redistributes population level information normalized through the exchange.
  • The Facility Registry (FR) serves as the authority for maintaining the unique identities of locations where health services are provided. This is the service that manages a master facility list dataset.
  • The Health Worker Registry (HWR) serves as the authority for maintaining the unique identities of health workers within a country.