A diagnostic tool for speech recognition applications is provided, which enables a administrator to collect multiple recorded speech sessions. The administrator can then search for various failure points common to one or more of the recorded sessions in order to get a list of all sessions that have the same failure points. The invention allows the administrator to playback the session or replay any portion of the session to see the flow of the application and the recorded utterances. The invention provides the administrator with information about how to maximize the efficiency of the application which enables the administrator to edit the application to avoid future failure points.