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Table 3 Exception flows signalized by variable features

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%)