Table 1.

Research questions and associated objectives.

Research questions	Objectives
SQ1: What are the types or models of FHIRa implementation?	To investigate various techniques, methods, or mechanisms used during the implementation of FHIR
SQ2: What are the common resources used in FHIR implementation?	To identify various resources used during the implementations of FHIR
SQ3: What are the applications that benefit from the use of FHIR?	To identify various types of applications that benefit from the FHIR standard (eg, mobile apps, SMARTb on FHIR apps, research apps, HAPIc FHIR apps)
SQ4: What are approaches applied to map or migrate data from previous standards to FHIR?	To investigate various mechanisms on how to extract FHIR resources from HL7d and other previous standards for mapping/migrating to the FHIR standard
SQ5: What are the goals of FHIR?	To identify or investigate the goals of the FHIR standard in the health care domain
SQ6: What are the challenges and open questions related to the FHIR domain?	To explore the challenges in the FHIR domain such as implementations (eg, FHIR APIe, standard, interoperability)

^aFHIR: Fast Health Interoperability Resources.

^bSMART: Substitutable Medical Applications Reusable Technologies.

^cHAPI: Health Level 7 application programming interface.

^dHL7: Health Level 7.

^eAPI: application programming interface.