Page 37 - Trust in ICT 2017

Trust in ICT 1

Figure 8 – Used car transaction model and each entities’ information level

Figure 9 – Asymmetric information, conflicting motivation,
and distrust in used car transaction

5.2.8.2 Actor list
Dealer: The major role of a dealer is mediating buyer and seller (owner) to gain economic profit.

Buyer: A buyer is someone who wants to purchase a used car from a dealer or seller.
Owner (Seller): An owner (seller) is someone who wants to sell his or her car to others including a dealer and
individual buyer.
(Trust) Service Broker: Trust service broker is a broker mediating an interaction among buyers, sellers, and
dealers through the information transferred by trust management platform. Based on the information, trust
service broker can inform the identified level of trust of owner, registered vehicle, and seller.

Trust Management Platform: Trust management platform responses various requests from a service broker
and others. Trust management platform analyses the level of trust by tracing the accumulated data from
various sources including social network, insurance company, vehicle repair shop, public, and the car itself.

5.2.8.3 Analysis
Participants’ advantage of adopting used car transaction through trust management platform.

This sub-section describes how trust can be achieved in used car transaction by trust management platform,
which plays a role in reducing the information gap among entities, refining data from various data sources,
and mediating entities through trust service broker. By adopting this platform, each entity participating in
used car ecosystem can take following advantage. Details are explained in Table 1.

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