Abstract
AbstractBackground: Centralized online reputation systems take advantages of Internet technologies to helpusers make decisions. From the system structure perspective, all reputation systems have five underlyingcomponents: input, processing, output, feedback loop and storage. Aim: Research in this area to datehas focused on evaluating the effectiveness of the input and processing components. This paper concen-trates on the output component, which disseminates and presents the collected and aggregated reputationinformation. Method: The paper proposes an evaluation metric, which is built from the informationquality (IQ) perspective. Eight measurements have been defined based on four relevant IQ dimensions,accessibility, timeliness, interpretability and completeness. Then the paper uses the metric to evaluate 15commercial systems. Results: The results show there are four main problems with current reputationsystems: 1) a lack of dissemination methods; 2) weak review filtering functions; 3) a lack of adequateinformation on reviewers and feedback and 4) a deficiency of multidimensional ratings.Keywords: Online Reputation Systems ;Product Review ; Information Dissemination ; E-commerce; Feedback Systems
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