Discussion Questions on Tufte and Flower, et al

My questions are as follows:

1. How do Tufte's concepts of data-ink ratio and chart junk factor in with Barton and Barton's denaturalized maps? How do we find a happy medium between the two?

2. What role can the scenario principle play in the development of visual documents (both visual elements and overall layout and design)?

3. In revisions of visual documents, how might visual representations be used to help users? How might these representations work with - or against - the principles Tuftes lays out?

*Jen