Cognitive Load

• Split up a major task into chunks
• Lessen user inputs, use default
• Get rid of unnecessary information, progressive disclosure

Consistency

• One design element = one type of affordance
• Visual - colors, typography, spacing
• Adhering to existing mental models - sign up screen

Forms

• Short and to the point
• Ask only important questions, others can follow if needed
• Field masks - phone brackets
• Information verification (in process or at submission)
• Customized keyboards - numerical keypad for postal code

Navigation

• Make navigation straightforward