Web site complexity metrics for measuring navigability

In years, navigability has become the pivot of Web site designs. Existing works fall into two categories. The first is to evaluate and assess a Web site´s navigability against a set of criteria or check list. The second is to analyse usage data of the Web site, such as the server log files. This work investigates a metric approach to Web site navigability measurement. In comparison with existing assessment and analysis methods, navigability metrics have the advantages of objectiveness and the possibility of using automated tools to evaluate large-scale Web sites. This work proposes a number of metrics for Web site navigability measurement based on measuring Web site structural complexity. We validate these metrics against Weyuker´s software complexity axioms, and report the results of empirical studies of the metrics.