Page 250 - Trust in ICT 2017

5 Trust in ICT

NOTE – Trust is quantitatively and/or qualitatively calculated and measured, which is used to evaluate values
of entities, value-chains among multiple stakeholders, and human behaviours including decision making.

4 Abbreviations and acronyms

This Recommendation uses the following abbreviations and acronyms:
CPS Cyber-Physical System
DIKW Data, Information, Knowledge and Wisdom

ICT Information and Communication Technology
IoT Internet of Things

5 Conventions

None.

6 Introduction
As evolution of digital technologies, information and communication technology (ICT) infrastructures and
services are increasingly important toward future knowledge society. ICT infrastructure not just only
improves the transmission speed at which users send and receive multimedia data, but also allows individual
users to enjoy previously inconceivable tools that improve life and business.

The world can be divided into physical, cyber, and social worlds. The physical world is composed of the
physical things which connect to other physical things, controlled by human and device. The physical things
have sensing and actuating capabilities. They can gather the raw data for data analysis and actuates the
corresponding physical things autonomously.
In the cyber world, the ICT infrastructures and services provide computing, communication, and control
platforms between human-to-human and human-to-machine. Big data analytics and cloud computing
technologies are becoming important to drive value creation, and foster new products, processes, and
markets. Moreover, it may be possible to invent a new eco-system by extracting accumulated knowledge
from the raw data gathered by things in the physical world.
The social world contains social entities such as individual human beings and social organization. The ICT
infrastructures and services enable the social entities to connect the cyber world. With the advent of online
social network services, people can share their opinions and experiences in the cyber world. On the other
hands, human-centric computing technologies make for human to interact with physical and cyber worlds by
using human interfaces (i.e., five senses of human). Moreover, the knowledge extracted by big data analytics
can give wisdom to human beings [b-Chen-2014]. ICT technologies also provide convergence services for
various industrial areas to offer a common service platform. The ICT infrastructures and services act as glue
for integrating physical, cyber, and social worlds.

6.1 Potential risks and necessity of trust

While ICT infrastructures and service have grown in size and complexity, the ICT world has risks, threats and
vulnerabilities at component, device, system, service, and human levels. There are many potential risks in
the world as follows.

 Risks in nature: Any scientific progress and technology development may incur potential risks. The
development of new technologies may be sometimes undesirable if the certain levels of controllability
and credibility are not guaranteed. Furthermore, the adaptation of new technologies may cause
instability and insecurity since new technologies always have uncertainty. New technological revolution
may provide great advantages for utilizing networking resources, however, it confronts unidentified risk
beforehand.

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