Overview - ISO/TS 5777:2024 (Internet Healthcare Service Network)
ISO/TS 5777:2024, published by ISO/TC 215, defines the architecture of internet healthcare service network (IHSN). The technical specification presents a reference engineering architecture, infrastructure components, deployment schemes and security requirements for delivering healthcare services and transmitting health information over the internet. It focuses on the overlay networking model - how services are opened, routed and consumed across multiple healthcare organizations - and includes an informative Annex A on implementation considerations.
Key topics and technical requirements
- Core architecture: IHSN is an overlay network composed of a service backbone network and one or more service access networks connecting service providers and recipients.
- Primary devices
- Service opening device: located at the access edge to register, publish, query and forward services; includes system and service management functions and security capabilities.
- Service routing device: located in the backbone to connect access networks, locate target services and relay requests/responses; includes device and network management plus security controls.
- Performance characteristics: guidance on technical metrics such as forwarding rate, service capacity, throughput and reliability that determine device and network sizing.
- Deployment schemes: typical topologies are described - star, tree and mesh - to guide engineering deployment choices for scalability and resilience.
- Security requirements: covers privacy information categories, access control, communication security, audit control and data security to protect health information across the IHSN.
Applications - who uses ISO/TS 5777 and why
- Health IT architects and network engineers - to design compliant IHSN infrastructures, choose service opening and routing devices, and size capacity based on throughput and forwarding-rate metrics.
- Healthcare organizations and system integrators - to implement inter-organizational service publishing, discovery and secure data exchange across provider boundaries.
- Vendors and device manufacturers - to validate product features against functional and technical characteristics required for service opening/ routing devices.
- Policymakers and regulators - to define procurement and interoperability expectations for internet-based telehealth services.
Practical benefits include improved interoperability of online consultations, e-prescribing, appointment scheduling and e-referral workflows, plus clearer engineering guidance for secure, scalable deployment.
Related standards
ISO/TS 5777 references terminology and definitions aligned with other standards used in health informatics, including ISO/IEC 20000-1, ISO 13940, ISO/IEC 2382 and ISO/IEC 30144. It was produced by ISO/TC 215 (Health informatics) and complements existing interoperability and security guidance for digital health systems.
Keywords: ISO/TS 5777:2024, internet healthcare service network, IHSN, health informatics, service opening device, service routing device, deployment topology, network security, access control, throughput, forwarding rate.