“…However, only an investigation on website performance based on the individual visitor session level enables a valid demand-actuated evaluation of customer/visitor value by quantifying the effectiveness of a company's RM effort in their website usage. Though, suitable methodological approaches that are able to enrich existing company data by providing internal measure of website performance in the context of relational marketing analysis are rare (Hahn & Kauffman, 2004;Hochsztain, Millán, Pardo, Pena, & Menasalvas, 2003). Furthermore, as far as we know, approaches that directly link the evaluation of a company's RM effectiveness to website performance, empirically based on customer website usage, do not exist.…”