L

lack of confidence in requirements, F-4

languages

accessibility and, 171

displaying user interface in more than one alternative, 272

of documentation, 82

ISO 639, 76, 272

multiness requirements and, 262

unparochialness and, 258–259

language-specific resources, substituting for missing, 274

language-specific text, banning hard-coding of, 258

lapsed time period, 336–337

layouts, consistent for reports, 166

levels of registration, 286

liability to pay a fee, 333

life support mechanisms for a system, 17, F-63

life-critical systems, 217

lifespan of a data entity, 120, 129

list of allowed values, 88

living entity

event in life of, 120, 133

lifespan of, 120, 129

multiness of, 264

naming, 122, 130

testing considerations, 133, 144

living entity requirement pattern, 129–133

load on a system, reducing, 214, 215, 245

loan approval decision rule ID, 100

local context diagram, F-56

local currency, configuration values for, 142

local scope, F-46

locale, 272

logging in, 295

logging messages, 58

logging out, 298, 299–300

logical data types, 86, 264–265

logical pattern for requirement IDs, F-37

logical remove only, 131

logical view of a system, F-56

login function, coding, 304

logs, 121, 123

longevity of transactions, 136

loopholes in access control, 307

lowest-priority requirements, including, F-40