HL-7 Based Middleware Standard for Healthcare Information System: FHIR

Fast health Interoperability Resources (FHIR), a advanced proposed emerging standard of Health Level 7 (HL7) that inheritance various advantageous of HL7- v2 and v3 for providing health interoperability. HL7 messaging Standard has been widely implemented and adopted by healthcare domain internationally from last few decades. Among hospital HL7-V2 (version ‘v2’) is preferred choice as compared to standard v3 to exchange healthcare information like electronic health records (EHR) among local hospitals. HL7-V3 was successor of the HL7-V2 that inherits various features and overcome various shortcomings of the V2. HL7-V3 standard had been highly criticized by the healthcare industry due to various shortcomings like complex documentation, implementation and maintenance cost high along with stalled system. HL7 standards has been introduced new approach FHIR standard which yet under experimental stage. FHIR has various attractive features like user friendly features, various built in modules and widely compatible with existing web standards. This research paper will provide substantiation evolution of the HL-7 standards pattern messaging, prologue related to the HL7 FHIR and comparison among HL7 standards.