Designing Highly Useable Software

undefined symbol errors, 229

undo lists, 22

undo method, 185, 187–188

undo systems, 51, 185–189

Unified Modeling Language (UML), 38–39

unique names for libraries, 214

Unix versioning system, 220–221

unsure programmers, 308–309

up-to-date online information, 151

UPA Voice newsletter, 322

updates

instant, 55–56

for Web interface, 163–166

URLs, comparing, 75

usability bugs

examples, 264–265

searching for, 271–272

as showstoppers, 268

Usability First website, 324

Usability.gov website, 323

Usability Interface magazine, 322

Usability Professionals' Association, 322

usability studies, 262

usability vocabulary, 116–117

use cases

developing, 28–29

working with, 38–43

useit.com website, 323

User Experience magazine, 322

user information in software installation, 287–288

user levels in navigation, 114

user name dialog boxes, 64, 64

user preferences

for color, 15

saving, 24–26

User Preferences dialog box, 24–26

UUI (Useable User Interface), 4–5

desktop metaphor in, 11–13, 12

idioms in, 9–11

intuitive, 6–8, 7

keyboard in, 26–30

questions asked in, 18–24, 19–24

repetitive motion injury, 31–32

respect for users in, 16–17, 17

saving user preferences in, 24–26

software libraries in, 17–18

Visual Basic, 13–16, 15–16