Index_F

F

Familiarity, 36

Fashion phones, 19

Features, 11-13, 17, 21, 25

critical, 26-29

hierarchical menu for, 251

and low-fidelity prototypes, 179

pressure to increase, 250-252

prioritization of, 260

and UI style, 20, 137

and usability, 26

Federal Express, 233

Field trials:

laboratory studies vs., 224

necessity for, 279

Finland, 114, 171, 285

Finnish, in screen menu, 64, 65

Ford, Henry, 242

Four-finger typing, 164

Fragmentation:

as research theme, 125

of user population, 269-273

Full-window layouts, 54

Functional end-user needs, 97-98

Functionality, 13n.

horizontal/vertical, 174

and usability, 26

Functions:

for multimedia services, 213-214

prioritizing, 269

UI style and, 137

'Funny' phone, 259