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Trust in ICT 5

III.2 Smart office sharing

III.2.1 Description

In a trust-based smart office service, usage rights on various office facilities depend on each users’ trust level
which is derived from trust index of each users. For example, it is assumed there are two kinds of user trust
level (high and low) with certain trust index threshold. For a user who has a high level of trust, he or she can
read and write the cloud storage. However, a user who has middle level of trust can only read the documents
in cloud storage. A user who has low level of trust has no right to access. Figure III.3 shows high level
illustration for smart office service with different priority of users and different permission to office facilities.
For the trust information provider, various properties like social/business relationship and membership can
be considered to analyse user’s trust level.

Figure III.3 – High level illustration for smart office service
III.2.2 Actors

– User: users are able to control and access smart office devices and facilities by using their own
devices or office devices (e.g., employer or employee, etc.)
– Smart office devices and facilities: connected devices and facilities in office (e.g., Wi-Fi access point,
personal computer, telephone, printer, meeting room, and canteen, etc.)
– Smart office provider: a smart office provider is in charge of providing common functionalities for
smart office services. It is collecting the status of smart office devices and facilities. Based on user’s
trust level provided by trust management service, it permits appropriate usage right of them to
users (e.g., building management service provider and service providers, etc.)
– Trust information provider: a trust information provider responses trust index and information
request from smart office providers or service brokers.

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