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Richard Atterer
Logging Usage of AJAX Applications With the "UsaProxy" HTTP Proxy
In Proceedings of the WWW 2006 Workshop on Logging Traces of Web Activity: The Mechanics of Data Collection, Edinburgh, Scotland, May 2006

This paper shows how to use the UsaProxy HTTP proxy to perform logging of user activity for AJAX web applications. UsaProxy is a special-purpose HTTP proxy which modifies HTML pages before forwarding them to the client browser. It adds JavaScript code which collects data about mouse movement, clicks, key presses and other types of interaction without affecting the user's browsing experience in any way. Using Gmail as an example for an AJAX application, the paper explains in detail how to prepare for a UsaProxy-based user test and how to interpret the log files generated by the system.
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