Agenda
- Warm-up: Which One Doesn’t Belong — four prompts, one a tired person could not follow
- Interface clinic: rewrite a prompt, an error message, and a menu so they answer the user’s question rather than yours
- The principle: a usable interface says what it wants, what went wrong, and what to do next
Things to do before our next class
- Rewrite every prompt in a program you have already written.