I found this definition of an “event” in my girlfriends CFA certification prepatory materials and found it quite appealing.

Especially in thinking about information architecture and rich media design this definition helps to identify and enumerate how a rich UI must be cataloged.

Proper user experience evaluation is filtering a set of task outcomes available through the user interface and determining which one is most intutive for the identified target user base and/or is the most efficient stepwise.

I’ve seen some good “matrix” event tables for mouse over behaviors but there needs to be a better way to map these outcomes visually in context. Any suggestions?