Connectivity Standards
Implementation guides that help digital health applications connect securely, authenticate users, share clinical context, and receive system notifications.
Older specifications may be removed when they are no longer current. Contact us to request a previous version.
Related
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ONE Access Gateway Transport Specification Defines secure transport requirements for exchanging health information between local systems and Ontario Health digital repositories and services.
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ONE Access Viewlet Framework – Developer Guide Provides integration guidance for embedding Ontario Health services and accessed information within clinical applications.
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ONE ID OpenID Connect Specification Supports secure authentication and identity management for users accessing Ontario Health digital services and repositories.
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Ontario Context Management System – FHIR Supports the exchange of patient and workflow context across connected clinical applications using HL7 FHIR standards.
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Ontario Subscription HL7 FHIR Implementation Guide Enables event notifications and subscriptions so systems can receive updates when information changes within provincial repositories.
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Single Sign On – Patient Context Sharing Standard Enables secure sharing of patient context between applications to support a seamless clinical workflow and patient record access experience.
Last Updated: September 25, 2026
