21
EXPLOIT TECHNICAL INNOVATION
Example: Voice Mail
Make use of yes/no dialogs when
one choice is common
Example: Sending a message
Example: Sending a message
Old
system
Record message.
Enter recipient’s telephone number
“To send this message, press the # key, to make private, press 1, to make priority, press 2, to schedule delivery, press 3, to file a copy, press 4. …”
Redesigned
system
ŸEnter recipient.
Record message
“Do you want to send it now?”
ŸYES/NO