Visual application for the analysis of Web-based information systems usage: a preliminary usability evaluation

This work presents a general description of the methods used in the on-going evaluation of a Visualizer, which is a sub-component of the Web Log Visual Analysis System. We are trying to evaluate some aspects of the user interface and visualization techniques implemented as part of the prototype. Observation and querying techniques were used with two types of users. A general description of those users and methods is presented. Preliminary results were encouraging and provided new ideas and information that will, eventually, allow a more complete and formal evaluation of our application.