...................................................................................................296
Figure 18.1 Performance influence table: data entry............................................................................313
Figure 18.2 Performance influence table: determining the variable outcomes ..................................313
Figure 18.3 Performance influence table: determining the instance factors.......................................314
Figure 18.4 Performance influence table: determining the primary variables ...................................315
Figure 18.5 Performance influence table: identifying the most important primary variable ...........316
Figure 18.6 A system modeled as a Markov chain ...............................................................................318
Figure 18.7 A system modeled as a Markov chain with probabilities.................................................318
Figure 18.8 A system modeled as a Markov chain with probabilities after 4 iterations....................319
Figure 18.9 The iterations converge the values.....................................................................................320
Figure 18.10 Example of a maintainability comparison of three applications; none of them
is improving, although efforts are sporadically made ......................................................329
Figure 18.11 Bugs found and fixed overall.........................
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