Architecture

Build on the institution’s existing ecosystem (EAI). Make every responsibility visible.

Depending on the institution, the target architecture may use the existing interoperability engine (EAI) and interfaces such as FHIR, HL7 and APIs. Those mechanisms must be validated locally; this demo demonstrates no production compatibility.

The operational problem

Integration is an operational discipline

Interfaces, identity, terminologies, latency, authorizations and errors must be defined — not a promise of universal connectivity.

Fragmented sources

Useful information may live across formats, systems or episodes, with different access paths.

Scopes

Source systems remain the systems of record; Ariane provides a derived context layer.

What Ariane does not claim to be

A universal connector that erases local interface, mapping or identity work.

Architecture

Four layers. One status per capability.

From source system to workflow.

Each capability carries exactly one of the three statuses below.

  • Illustrated in this demoBehavior illustrated here with fictional data — not evidence of a live integration.
  • Target architectureIntended technical pattern; not an operational integration.
  • To validate with the institutionDepends on local systems, interfaces, permissions or governance.
1 · Systems of record

Institution applications

To validate with the institution

  • EHRTo validate with the institution
  • LISTo validate with the institution
  • RIS / reportsTo validate with the institution
  • PharmacyTo validate with the institution
  • DocumentsTo validate with the institution

Each institution system remains the authority for its domain.

2 · Existing exchange layer

Interfaces & identity

  • FHIR APIsTarget architecture
  • HL7 v2/v3Target architecture
  • Secured APIsTarget architecture
  • Files (PDF, OCR, Word…)Target architecture
  • DICOMweb / reportsTarget architecture
  • Patient identity / INSTo validate with the institution

Exchange and patient identity between source applications.

3 · Ariane

Patient-context layer

  • ProvenanceIllustrated in this demo
  • SearchIllustrated in this demo
  • AbstentionIllustrated in this demo
  • NormalizationTarget architecture
  • Longitudinal indexTarget architecture
  • Audit eventsTarget architecture

Ariane derives a patient context from authorized sources.

4 · Presentation and actions in the workflow

Clinical workflows

  • Patient viewIllustrated in this demo
  • SearchIllustrated in this demo
  • Preparatory documentsIllustrated in this demo
  • SMART-on-FHIRTarget architecture
  • Embedded widgetTarget architecture
  • Source-system APITo validate with the institution

The workflows shown here are simulated.

In this demonstration, nothing is written to a source system. Source consultation is read-only by default. Any eventual export or write-back would be separate, explicitly triggered, authorization-gated and auditable — only if the institution and source application allow it.

Scoping envisaged for a deployment

Steps and responsibilities to validate with an institution.

Interfaces, identity, terminologies, latency, authorizations and error handling must be defined — and not hidden behind a promise of universal connectivity. This scoping describes a validation method with the institution; it is not evidence of a deployment already completed.

Institution and project side

  • Authorize access to sources, identity and roles.
  • Validate interfaces, mappings, clinical use and acceptance criteria.
  • Validate hosting, security and support.

Proposed Ariane scope

  • Preserve provenance in the derived context and in outputs.
  • Implement agreed interfaces, search and application behavior.
  • Document retained configuration, testing, monitoring and change control.

Use-case definition

Users, workflow, sources, expected outcome and exclusions.

Scope and success criteria

Technical validation

Interfaces, identity (including INS), authorizations, provenance and responsibilities.

Architecture and responsibility matrix

Controlled pilot

Configure, test failure modes, train and measure.

Pilot results and risk review

Production rollout — if pilot criteria are met

Controls, monitoring, support and possible extension.

Production acceptance package

Timeline estimated only after prerequisites are validated with the institution.

Questions to resolve before deployment

Architecture and governance

Does Ariane replace the EHR or the interoperability engine?

No. Ariane is a clinical information-access layer. Source systems remain the systems of record. The exact boundary is defined with each institution.

Is a particular EAI or EHR required?

No. Depending on the institution, the target architecture may use the existing interoperability engine (EAI) and the interfaces already available. No single EHR, EAI or standard is imposed here. Scope is validated locally.

Is the product always read-only?

Read-only by default in this demo — see the scoping stated above.

Does this demo establish FHIR, HL7 or DICOM compatibility?

No. FHIR, HL7, APIs or files are possible mechanisms — each to be validated locally. This demo establishes no production compatibility.

What happens if a source is missing or a mapping is incomplete?

Ariane does not replace local interface or mapping work. In this demo, missing information is made visible rather than filled in. The production approach is defined with the institution.

What integration timeline should be expected?

No universal timeline is announced. A schedule is estimated only after prerequisites — sources, interfaces, authorizations and use case — are validated with the institution.

What must be defined regarding security, GDPR and compliance?

With the institution: GDPR roles, localization, retention, subprocessors, data scope, hosting, access controls, logging and operational responsibilities. This demo presents neither a certification nor a declared GDPR compliance posture.

Start with an institution workflow and make the evidence visible.

Which EHR and key systems do you use? With your users and use case, we assess architecture, risks and a validation plan tailored to your institution.