Audit trails provide a rich source of data that can be used in the evaluation and research of interactive multimedia (IMM). Indeed, one of the major problems with their use is that they provide so much data that meaningful methods of quantitative analysis prove difficult. Most of the studies incorporating analyses of such data are restricted to qualitative analysis. This is obviously quite legitimate where the nature of the problem dictates a qualitative approach, but I suspect that some studies are conducted in this manner due to a lack of alternative quantitative models. This paper looks at models of quantitative analysis of audit trail data for use in research and evaluation.