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Trust in ICT 5

Figure III.5 – High level illustration for document sharing service
III.3.3 Service flow

Figure III.6 – Document sharing service flow

 Detailed flow description (Figure III.6)
2) When User B requests a document to User A's wireless portable hard drive by using B’s own
smartphone.
3) User B's smartphone as a gateway sends User B’s social information community of interest value to
trust information provider.

4) From User A’s perspective, trust information provider calculates a trust index of User B by using
given information of User A and B.
5) The trust information provider notifies the trust index to the wireless portable hard drive. After that,
it judges whether User B has enough authorization to get the document.

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