Technical Prerequisites

Overview​

Building with Open Health Stack involves four primary standards and technology layers. This guide summarizes the technical foundation and tooling required.

Core specifications and standards​

1. HL7 FHIR (Fast Healthcare Interoperability Resources)​

All clinical data, patient identities, and administrative structures are modeled as standard FHIR resources.

• Resource models include Patient, Encounter, Observation, Condition, Practitioner, Location, and Organization.
• Reference is the official HL7 FHIR R4 Specification.

2. Structured Data Capture (SDC)​

Standard clinical intake forms, branching questionnaires, validation logic, and calculated clinical scores are defined in standard Questionnaire resources and rendered natively on devices.

• Reference is the HL7 Structured Data Capture Implementation Guide.

3. SQL-on-FHIR and ViewDefinitions​

Declarative ViewDefinition resources flatten nested FHIR JSON hierarchies into tabular rows for user interface projections and analytical database schemas.

• Reference is the SQL-on-FHIR v2 Specification.

4. OpenID Connect and OAuth 2.0​

Centralized identity, role tokens, and single sign-on across mobile clients, web portals, and gateway reverse proxies are managed via OAuth 2.0.

Required developer toolchain​

Where to go next​

• Ready to deploy the local stack? Follow the Get started quickstart.
• Looking for hands-on code examples? Explore Tutorials and codelabs.