Browse the online book, Designing Interfaces
http://designinginterfaces.com/
Especially:
http://designinginterfaces.com/Few_Hues_Many_Values
It's All in the Process (PDF:
644 KB / 7 pages)
by Ann Senechal
Information design, according to practitioners like the Berlin-,
London-, and San Francisco-based firm MetaDesign, is about more
than just conveying complex information clearly. To work well,
it has to be a process in which designers and clients act as
partners.