From: In-depth characterization of exception flows in software product lines: an empirical study
 |  |  |  | Flow occurrences (percentage per release) | |||
---|---|---|---|---|---|---|---|
Flow | Signaler | Handler | Handling | MM | BkDb | Pvl | All |
VC | Variable | Core | Any | 18 (51%) | 183 (39%) | 6 (30%) | 207 (40%) |
VCS | Variable | Core | Specialized | 18 (51%) | 17 (4%) | 0 (0%) | 35 (7%) |
VCG | Variable | Core | Generic | 0 (0%) | 166 (35%) | 6 (30%) | 172 (33%) |
VV | Variable | Variable | Any | 8 (23%) | 19 (4%) | 0 (0%) | 27 (5%) |
VVS | Variable | Variable | Specialized | 8 (23%) | 19 (4%) | 0 (0%) | 27 (5%) |
VVG | Variable | Variable | Generic | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
VaVb | Variable | Variable | Any | 9 (26%) | 100 (22%) | 0 (0%) | 109 (21%) |
VaVbS | Variable | Variable | Specialized | 9 (26%) | 13 (3%) | 0 (0%) | 22 (4%) |
VaVbG | Variable | Variable | Generic | 0 (0%) | 87 (19%) | 0 (0%) | 87 (17%) |
VE | Variable | Escaped | - | 0 (0%) | 162 (35%) | 14 (70%) | 176 (34%) |
Subtotal (VC + VV + VaVb + VE) | 35 (100%) | 464 (100%) | 20 (100%) | 519 (100%) |