“…Perceived usefulness refers to perceptions of service quality, consumer satisfaction, and a high level of perceived usefulness leads to increased intention by the consumer to purchase (Cao, Zhang, & Seydel, 2005;Hampton-Sosa, 2004;Kim & Lee, 2008;Koufaris, 2002). Perceived usefulness moderates the relationship between service quality beliefs and continuance intention (Naidoo & Leonard, 2007). Perceived usefulness is strongly associated with customers' cognitive function in terms of enhancing job effectiveness (Davis, 1989) and refers to customers' perception of how well they understand information on websites in terms of the degree of perceived service quality and satisfaction.…”