Rough Outline

CHALLENGES

1. Using good HCI design principles in order to design patterns
   1. handling of screen real estate and spatial composition in a GUI context
   2. collecting info before design, reuse, analyzing old systems
2. Writing a flexible, extensible software UI
3. Dealing with issues before the design phase, patterns before the design phase
4. Communicating design between software groups
5. Correctly communicating elements of patterns