Designing Highly Useable Software

object-oriented programming (OOP), 232–234, 234

for developers, 242–244

for end users, 239–241

limitations of, 236–238

for system administrators, 241–242

for usability, 238

objects, deleting, 176–178

odometers, 150

offsite, in-person training, 294

OLE (Object Linking and Embedding), 130, 197–198

one-handed operations, 118

online banking, 251–252

online data, 148–151

online help, 288–290

converting manuals to, 290

PDF files for, 291–293, 292–293

online training, 294

onsite, in-person training, 294

Open method, 226

open-mindedness, 276

opening files

copies of, 22

in running programs, 196–198

option buttons, 77–78, 78

Options dialog boxes, 87–88, 87–88

organizations, helpful, 322

outgoing e-mail, 167

Outlook

Calendar feature in, 101

keyboard shortcuts in, 27–28

multiple instances of, 195

overconfident programmers, 309–311

overly complex code, 184–185

overuse of mouse, 31

overwriting files, warnings for, 287