ISO/TS 5777:2024

Technical
Specification
ISO/TS 5777
First edition
Health informatics — The
2024-06
architecture of internet healthcare
service network
Informatique de santé — L'architecture du réseau de services de
soins de santé sur internet
Reference number
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Overall architecture of internet healthcare service network. 3
5 Infrastructure of internet healthcare service network . 4
5.1 Service opening device .4
5.1.1 Functional requirements .4
5.1.2 Technical characteristics .5
5.2 Service routing device .5
5.2.1 Functional requirements .5
5.2.2 Technical characteristics .5
6 Deployment scheme of internet healthcare service network. 6
6.1 Star topology .6
6.2 Tree topology .6
6.3 Mesh topology .7
7 Security of internet healthcare service network . 8
7.1 Category of privacy information .8
7.2 Network security requirement .8
7.2.1 Access control .8
7.2.2 Communication security .9
7.2.3 Audit control .9
7.2.4 Data security .9
Annex A (informative) Implementation of IHSN . 10
Bibliography .12

iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 215, Health informatics.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Introduction
With the development of computer and network technologies, the internet has been applied widely in
healthcare services, giving rise to ‘internet healthcare’. Internet healthcare is a new type of telehealth that
uses the internet for online diagnosis and treatment. It can provide users with medical and healthcare
services over a distance, thus improving the accessibility and efficiency of healthcare services.
The booming industry has now naturally formed a complicated internet healthcare service system composed
of related healthcare service organizations, users, operators, and other stakeholders and participants.
Participants provide internet-accessible healthcare services based on their facilities and abilities, such as
online consultations, electronic prescriptions, schedule medical appointments, and e-referral services.
Across different organizations, healthcare services collaborate, connect and exchange information,
fulfilling users' healthcare needs and forming the internet healthcare service network. Although the
internet healthcare service network is developing rapidly worldwide, a unified architecture or engineering
implementation methods are not yet included. Without those, services scattered across different healthcare
organizations are delivered loosely, making it difficult to cooperate effectively.
This document describes the reference architecture and typical internet healthcare service network
deployment schemes. It aims to help all internet healthcare participants to reach a consensus on concepts
and terminology. It can further guide the construction of internet healthcare service network, promoting
the development of the entire industry.

v
Technical Specification ISO/TS 5777:2024(en)
Health informatics — The architecture of internet healthcare
service network
1 Scope
This document provides the architecture of internet healthcare service network, including:
— overview of internet healthcare service network;
— infrastructure and deployment scheme of internet healthcare service network;
— security of internet healthcare service network.
This document mainly focuses on the engineering architecture and infrastructure deployment of healthcare
information transmission among various healthcare organizations through services, as shown in Figure 1.
The implementation of information systems and healthcare services within organizations is demonstrated
in Annex A.
This document applies to the construction and application of internet healthcare service network.
Key
1 service delivery via internet
2 entities of provider and recipient
3 scope of this document
Figure 1 — Scope of this document

2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
internet healthcare
internet-based telehealth
Note 1 to entry: Internet-based technologies deliver healthcare and transmit health information over both long and
short distances.
Note 2 to entry: Telehealth utilizes all kinds of information and communications technologies, rather than internet
technology only.
3.2
internet healthcare service
healthcare service activities undertaken via internet
3.3
service provider
organization, or part of an organization, or individual that manages and delivers a service or services to
customers
[SOURCE: ISO/IEC 20000-1:2018, 3.2.24, modified — “or part of an organization, or individual” was added to
the definition.]
3.4
service recipient
patient
subject of healthcare
healthcare actor with a personal role, who seeks to receive, is receiving, or has received healthcare services
[SOURCE: ISO 13940:2015, 5.2.1, modified — “services” was added to the definition.]
3.5
internet healthcare service network
IHSN
overlay network built on the internet to deliver healthcare services and transmit healthcare information
over long distance
3.6
service opening device
device that opens services for healthcare organizations or other service providers (3.3) in internet healthcare
service network (3.5)
3.7
service routing device
device that locates the target services and relays the service request/response in internet healthcare service
network (3.5)
3.8
service backbone network
network built by service routing devices (3.7) that connects multiple service access networks (3.9)
3.9
service access network
network that connects services to service opening devices (3.6) for healthcare organizations or other service
providers (3.3)
3.10
forwarding rate
number of tasks that can be transmitted by the networking equipment in a given time
3.11
capacity
maximum amount of information that a device can manage
3.12
throughput
measure of the amount of work performed by a device over a given period of time
[SOURCE: ISO/IEC 2382:2015, 2122878, modified — “computer system” was replaced by “device” in the
definition and notes to entry were deleted.]
3.13
reliability
ability to per
...