Bill Scott of Yahoo! posted a short article about how he uses an "Interaction Matrix" to document rich interactions. I really like this approach because of how it explicitly details out each actor and state within the interaction.
Software that claims to make the documentation process easier always catches my eye. I am a big sucker for it. They make claims such as: time wasted creating boxes and arrows will no longer be, life will be better for everyone, and documentation will be more agile and easy to create and maintain.
Have you ever actually had this experience?
