Standards

Every report, baseline and alert is an HL7 FHIR R4 resource you can check at the source.

HL7 FHIR R4
Every record is a resource
CapabilityStatement (opens in a new tab)
OneAquaHealth IG
Sites, indicators, cohorts, health measures
hl7-eu/oah (opens in a new tab)
Our FSH profiles
Alerts, clinic messages, lineage
FSH source (opens in a new tab)
HL7 FHIR Validator
Checked on every change
validate-fhir.yml (opens in a new tab)
SMART App Launch 2.0
Clinician sign-in for the clinic view
smart-configuration (opens in a new tab)
Model Context Protocol
Any AI client can read the data
POST https://oneaquahealth.duckdns.org/mcp

How each concept maps to FHIR

Stream-to-Clinic concepts and the FHIR resources and profiles that carry them
Concept	FHIR resource	Profile
Stream site	Location	LocationOah (opens in a new tab)OAH
Citizen report	Observation	ObservationIndicatorsOah (opens in a new tab)OAH
Report photo	Media + Binary	Core R4
Who reported it, and when	Provenance	StcReportProvenance (opens in a new tab)ours
District cohort near a stream	Group	GroupOah (opens in a new tab)OAH
Baseline disease prevalence	Observation	ObservationHealthMeasureOah (opens in a new tab)OAH
Clinic and the streams it serves	Organization + HealthcareService	Core R4
Health alert with its evidence	DetectedIssue	StcStreamRiskAlert (opens in a new tab)ours
Alert sent to a clinic	Communication	StcClinicAlert (opens in a new tab)ours
Clinic's reply	Communication (inResponseTo)	StcClinicResponse (opens in a new tab)ours
AI-drafted plain-language notice	Communication (sender Device) + Provenance	StcClinicAdvisory (opens in a new tab)ours
Trigger for outside observations	Subscription (rest-hook)	Core R4

Our own profiles, built on the OAH IG

Seven profiles for what happens after the stream: alert, clinic messages, AI advisory, lineage.

StcStreamRiskAlert (opens in a new tab)DetectedIssue
Health alert with evidence
StcClinicAlert (opens in a new tab)Communication
Alert sent to a clinic
StcClinicResponse (opens in a new tab)Communication
Clinic's coded reply
StcClinicAdvisory (opens in a new tab)Communication
AI-drafted notice
StcAdvisorDevice (opens in a new tab)Device
The language model
StcReportProvenance (opens in a new tab)Provenance
Who reported what
StcAdvisoryProvenance (opens in a new tab)Provenance
Where AI text came from

Live examples

Real resources on the public FHIR server, right now.

Conformance, checked on every change

Build the OAH IG at a pinned commit
b907cf0
Generate samples from the app's code
Build our profiles from FSH
Validate with the HL7 validator
validator_cli

Plugging in another system

Any system that writes an ObservationIndicatorsOah Observation gets the same assessment.

Partner writes an Observation
ObservationIndicatorsOah
Subscription passes it on
citizen-observations (opens in a new tab)
Risk engine re-checks the site
Alert reaches the clinics
DetectedIssue + Communication
Clinic replies in FHIR
inResponseTo
Plain-language advisory, marked as AI
sender: Device + Provenance

Try it with curl

Show commands

# What the server supports
curl -s https://oneaquahealth.duckdns.org/fhir/metadata

# Stream sites conforming to LocationOah
curl -s "https://oneaquahealth.duckdns.org/fhir/Location?_profile=http://hl7.eu/fhir/ig/oah/StructureDefinition/location-oah"

# Latest citizen reports at one site
curl -s "https://oneaquahealth.duckdns.org/fhir/Observation?subject=Location/Loc-Almyros&_sort=-date&_count=5"

# Health alerts and the messages sent to clinics
curl -s "https://oneaquahealth.duckdns.org/fhir/DetectedIssue?_sort=-_lastUpdated"
curl -s "https://oneaquahealth.duckdns.org/fhir/Communication?category=alert"

# Clinic replies, found by our profile
curl -s "https://oneaquahealth.duckdns.org/fhir/Communication?_profile=https://oneaquahealth.duckdns.org/fhir/StructureDefinition/stc-clinic-response"

# Everything about one site as a single Bundle
curl -s https://oneaquahealth.duckdns.org/sites/Loc-Almyros/bundle