8. The system of claim 6 further comprising means for providing, to each of the usability experts, the description of the event.
8. The system of claim 6 further comprising means for providing, to each of the usability experts, the description of the event. 9. The system of claim 8 wherein: each usability expert has a particular role in studying the interaction support provided by the computing devices; and the means for providing, by the usability engine to each of the usability experts, the description of the event further comprises means for filtering the description of the event to be provided to each usability expert in dependence upon the particular role of each usability expert.