UI Development

Old Approach: Waterfall of Software Design

This is not the way we do things anymore

This also brings about iterative HCI. Design, Implementation (Prototype), Evaluation

Large percentage of development effort
- 40% - 70% is typical
- UI specialists are needed
- Often a team of graphic & interface designers, marketers, test engineers, software engineers
- Project progress and team communication is easier if full team understands UI principles
UI software is becoming quite complex
- Multiple toolkits, frameworks, and applications available