Page 194 - Trust in ICT 2017

3 Trust in ICT

virtual objects to cooperate with. On the other hand, when huge amount of data is collected in the cyber
domain, they should be processed and analysed accurately and transparently.

Data should be also transmitted and communicated in a reliable way via networking systems. Existing
advances in networking and communications can be applied in order to achieve data transmission and
communication trust. In particular, the trustworthy networking and communication protocols can support
heterogeneous and specific networking contexts.

Social trust

Social networks are popular for sharing information and knowledge. Trust is an important feature in social
networks because it relies on the level of trust that users have with each other, as well as with the service
provider. Social trust actually depends on the behaviour and interactions of humans in the social networks.
If humans fail to build trust, then they may not wish to share their experience and knowledge with others
because of anxiety that their knowledge and privacy will be misused.

Social-Cyber-Physical domain trust
In the ICT infrastructure, there are interactions among the social, cyber and physical objects, as well as data
transmission between them. Actually, the objects in the physical and cyber domain interoperate closely with
each other and form a system organization around its user (human) in the social domain. Human interactions
with cyber-physical objects should be performed in a trustworthy way.

Furthermore, because most smart devices are human-related or human-carried devices, the social
relationships between humans can spread through their devices. To define and manage trust among physical,
cyber and social domains, appropriate trust models for the interactions among social, information and
communication networks are required while taking into account the severe resource constraints, and
dynamics. Trust evaluation and trust management are especially challenging issues in the social-cyber-
physical domain trust.

Cross-domain service trust
Trust management is service and domain specific, and it may be desirable to combine features from different
trust management systems for developing cross-service trust management which is able to cover social-
cyber-physical trust relationships between different service domains.
To disseminate trust information from one service domain to another service domain, a trust service
brokering mechanism can be used for efficient, effective and suitable trust dissemination.

8.2 Trust Architectural Framework

Based on the generic ICT trust conceptual model, an architectural framework for strengthening trust in the
ICT infrastructure is presented in Figure 8-2. It consists of four major parts as follows.

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