Index_F

F

Failure

component, likelihood of, 314

definition of, 99

determination problem, 330

events, 35, 52, 269, 316

frequency vector (FFV), 316, 342

mean time to, 207

module, probabilities, 323

probability, 316, 322

rates, variation in reporting, 47

reports, 181, 205

software system, 310

Fan-in metrics, 95

Fan-out metrics, 95, 96

Fault(s)

burden, 280, 357

code, 97, 210

of commission, 97

control, 131

data, collection of, 180, 212

definition of, 99

design, 97

-free code, 8, 36

index (FI), 131, 132, 187,188, 211, 237, 337, 357

across builds, 209

build deltas, 192

calculation of average, 189

change in of PASS system, 193

as fault surrogate, 278

fractional, 291, 294

measure, generalized, 265

metric, problem with, 187

sequential builds, 193, 194

values, 132, 340

insertion, 48, 275

introduction, 204

process, software evolution and, 201

rate of, 198, 203

linear relationship between, 139

measurement strategy, 99

of omission, 97

potential, 201

probable executions exposing, 269

program changes to fix, 98

proneness, 315

rate, variation in, 340

relationship between code changes and, 206

removal, rate of, 198

reporting, 46, 100, 181

software, 17, 96, 302

anticipation of, 131

elusiveness of, 137

introduction of, 51

surrogate for, 133

specification, 97

surrogate, 192, 201, 278, 292

taxonomy, subdivisions of, 97

F distribution, 384

Feedback control system, measurement-based, 8

FFV, see Failure frequency vector

FI, see Fault index

File management system, 175–176

First-order mapping, 243

Floating point data attribute, 90

Flowgraph

example of cycle in, 90

instrumentation level, 260

irreducible, 79

metrics, enumeration of, 87, 88

path metrics, enumeration of, 89

preliminary, 83

prime, 79, 80

program iteration constructs, 79

reduction of, 86

representation

conversion of C program into, 80

hierarchical structure of, 412

FORTRAN, 368

lower bound of array in, 92

main program, huge, 241

programmers, 31, 50–51

Fractional complexity, 293

Fractional FI, 291, 294

Function

calls, 407

module

integer return, 265, 266–267

at runtime, 265

operational complexity of, 298

point(s), 95

ratings, 62

scores, hypothetical, 63

serious drawback of, 62

Functional complexity, 297

Functional entropy, definition of, 270–271

Functional failure probabilities, vector of, 318

Functionality(ies)

distribution of module activity by, 322

execution, conditional probabilities of by operation, 321

mapping of operations to, 320

modules associated with, 228

operation defined by, 229

Functional module subsets, 295

Functional profile

collection of data to construct, 263

program, 248, 249, 251

Functional system metaphor, 219

Functional testing, 344