Smart city system - Methodology for concepts building
IEC SRD 63235:2021 provides a holistic system of systems approach to provide views, methodology framework, principles, processes, rules, and evaluation criteria for smart city system concepts building. While it does not specify the definitions of a smart city system, it provides a methodology based on system approaches for coordination, cooperation and connectivity of the terminology sources including IEC, ISO and ITU. The methodology fosters a multi-dimensional system of systems view on smart city systems across dimensions, domains and layers along the lifecycle of a smart city system, scenarios and use cases, supporting the sustainable development of smart city system arrangements, activities and artefacts, convergence of people, process and productivity globally.
Standards Content (Sample)
IEC SRD 63235
Edition 1.0 2021-03
Smart city system – Methodology for concepts building
IEC SRD 63235:2021-03(en)
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IEC SRD 63235
Edition 1.0 2021-03
Smart city system – Methodology for concepts building
ICS 01.040.01 ISBN 978-2-8322-9388-1
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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FOREWORD . 3
INTRODUCTION . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Methodology for smart city system concepts building . 6
4.1 General . 6
4.2 A system of systems view . 7
4.3 A methodology framework . 8
4.4 Principles . 9
4.5 Processes . 10
4.6 Rules . 11
4.7 Evaluation criteria for assessment of the concept and domain relevance . 12
4.7.1 General considerations . 12
4.7.2 Domain relevance assessment . 12
4.7.3 Stakeholders relevance assessment . 12
4.7.4 Domain and stakeholders matrix relevance assessment . 12
Annex A (informative) Example of a smart city concept system building from three
SDOs . 14
A.1 Concepts relating to smart city . 14
A.2 Relationships of concepts relating to smart city . 16
Bibliography . 17
Figure 1 – Concept views of smart city systems . 8
Figure 2 – A methodology framework for building smart city system concept . 9
Figure A.1 – Concepts relating to smart city and their relationships . 16
Table 1 – Domain and stakeholders matrix relevance assessment . 13
Table A.1 – Definitions of smart city from different SDOs and the key terms . 15
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IEC SRD 63235:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
SMART CITY SYSTEM –
METHODOLOGY FOR CONCEPTS BUILDING
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC SRD 63235, which is a Systems Reference Deliverable, has been prepared by IEC systems
committee Smart Cities.
The text of this Systems Reference Deliverable is based on the following documents:
Draft SRD Report on voting
Full information on the voting for the approval of this Systems Reference Deliverable can be
found in the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• replaced by a revised edition, or
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This document provides methodologies being performed and to be continually performed in the
sustainable development of a future part of IEC 60050 on smart city systems.
The methodology in this document provides system approaches to coordination, cooperation
and connectivity of the terminology sources including IEC, ISO and ITU. The methodology
fosters a multi-dimensional system of systems view on smart city systems across dimensions,
domains and layers along the lifecycle of a smart city system, scenarios and use cases,
supporting the sustainable development of smart city system arrangements, activities and
artefacts, convergence of people, process and productivity globally.
Planned as IEC 60050-831, International Electrotechnical Vocabulary (IEV) – Smart city systems.
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IEC SRD 63235:2021 © IEC 2021 – 5 –
SMART CITY SYSTEM –
METHODOLOGY FOR CONCEPTS BUILDING
This document, which is a Systems Reference Deliverable, provides a holistic system of
systems approach to provide views, methodology framework, principles, processes, rules, and
evaluation criteria for smart city system concepts building.
The methodology is applicable to continual improvement of a future part of IEC 60050 on smart
city systems, but is not limited to it.
NOTE It is planned that smart city systems will form the subject of IEC 60050-831.
This document does not specify the definitions of a smart city system.
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 terminological databases for use in standardization at the following
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
abstraction of a property (3.5)
Note 1 to entry: Characteristics are used for describing concepts (3.2).
[SOURCE: ISO 1087:2019, 3.2.1, modified – The EXAMPLE has been deleted.]
unit of knowledge created by a unique combination of characteristics (3.1)
Note 1 to entry: Concepts are not necessarily bound to particular natural languages. They are, however, influenced
by the social or cultural background, which often leads to different categorizations.
Note 2 to entry: This is the concept "concept" as used and designated by the term "concept" in terminology work.
It is a very different concept from that designated by other domains such as industrial automation or marketing.
[SOURCE: ISO 1087:2019, 3.2.7]
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system of concepts
set of concepts (3.2) structured in one or more related domains (3.4) according to the concept
relations among its concepts (3.2)
[SOURCE: ISO 1087:2019, 3.2.28]
field of special knowledge
Note 1 to entry: The borderlines and granularity of a domain are determined from a purpose-related point of view.
If a domain is subdivided, the result is again a domain.
[SOURCE: ISO 1087:2019, 3.1.4]
feature of an object
Note 1 to entry: One or more objects can have the same property.
[SOURCE: ISO 1087:2019, 3.1.3, modified – The EXAMPLES have been deleted.]
designation that represents a general concept by linguistic means
[SOURCE: ISO 1087:2019, 3.4.2, modified – The EXAMPLE and Note 1 to entry have been
4 Methodology for smart city system concepts building
Methodology refers to a coherent, integrated set of methods from which a coherent sub-set can
be selected for particular applications. A methodology for building smart city system concepts
should contain at least six components:
a) a system of systems view with common concerns and interests of multiple stakeholders
b) a methodology framework of constructs essential to the problem (see 4.3);
c) a set of principles guiding the scopes of concept and taxonomy of a smart city system
d) a set of procedures suggesting the direction and order to proceed (see 4.5);
e) a series of rules identifying things to be avoided (see 4.6); and
f) a collection of evaluative criteria for assessing the quality of the product (see 4.7).
NOTE Adapted from the definition of methodology in ISO/IEC 16500-8:1999, 3.14.
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4.2 A system of systems view
A system of systems view (see Figure 1) considers the smart city as a complex system, made
up of many vertical domains such as transport, health, education, and employment. These
vertical domains are interconnected by three cross-cutting systems that include views of social
system, digital system and physical system of a city and system approach, which work together
as a complementary whole in responding to the concerns and interests of different stakeholders
(ISO/IEC 30182:2017, 2.14). Each of these cross-cutting systems, in turn, can be subdivided
into other horizontal, cross-cutting domains.
Taking this system of systems view enables the total capability of a city to be enhanced in a
way and to an extent that none of the constituent systems can accomplish on its own. Each
constituent system is a useful system by itself, having its own management, goals and
resources, but when coordinated within the smart city system (SCS) contributes to providing
the unique capability of the SCS.
The social system provides a multi-dimensional governance framework
(ISO/IEC TR 38502:2017, 3.1) for coordinating arrangements of strategies, policies, decision-
making structures and accountabilities to multiple stakeholders' concerns in social space and
A digital system provides a multi-domain architecture framework (ISO/IEC/IEEE 24748‑1:2018,
3.7) for cooperating activities of conventions, principles and practices for individual domain
architecture and enabling digital transformation.
A physical system provides a multi-layer application framework (ISO/IEC/IEEE 24765:2017,
3.177) to connect artefacts in each subsystem and enable interfaces between systems in
physical space to support all necessary interactions.
An integration of the three systems supports the convergence of multi-dimensional, multi-
domain and multi-layer concerns and interests of multiple stakeholders as well as enhancing
the adaptive capacity of a city as an ecosystem to deliver a sustainable, prosperous and
inclusive future for its citizens.
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Figure 1 – Concept views of smart city systems
4.3 A methodology framework
A methodology framework refers to a way, or structure, that supports a number of different
methods and languages to be used together when developing a system.
NOTE This definition of methodology framework is adapted from ISO/IEC 16500-8:1999, 3.15.
The methodology framework for a smart city system concept system refers to a system of
systems way of thinking that supports multi-dimensional, multi-domain and multi-layer, lifecycle
and use case analysis approaches to be used together as a complementary whole in developing
a smart city system, as shown in Figure 2.
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IEC SRD 63235:2021 © IEC 2021 – 9 –
Figure 2 – A methodology framework for building smart city system concept
A methodology framework for smart city system concept building would have the following
a) At the high-level, seeing the city as an organic whole to build a multi-dimensional smart city
coordination framework supporting people-interdependent and shared visions.
b) At the intermediate-level, setting up a multi-domain smart city cooperation framework to
support communication within each specific system to enable solutions and processes to be
compared, harmonized and aligned, as well as working together towards shared goals in
the management of other critical infrastructure.
c) At the low-level, establishing a lifecycle connectivity framework to bring alternatives and
complementary approaches together towards productivity-oriented shared solutions.
These all form integrated parts of the organic whole, operating as a multi-layer application
framework having a reusable architecture for all or part of a system, thus supporting shared
The terms included need to be:
a) highly relevant and pertinent to the smart city system domain;
b) highly relevant to reaching clarity and consensus in the smart city system dom