thesis - Faculty of Information and Communication Technologies ...

List of Tables
2.1 The Laws of Software Evolution [175] . . . . . . . . . . . . . 19
3.1 The different types of histories that typically provide input
data for studies into software evolution. . . . . . . . . . . . 42
3.2 The criteria that defines an Open Source Software System. 45
3.3 Systems investigated - Rel. shows the total number of distinct
releases analyzed. Age is shown in Weeks since the
first release. Size is a measure of the number of classes in
the last version under analysis. . . . . . . . . . . . . . . . . 52
4.1 Structure of a compiled Java Class. Items that end with
an * indicate a cardinality of zero or more [180]. . . . . . . 75
4.2 Direct count metrics computed for both classes and interfaces.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
4.3 Metrics computed by processing method bodies of each
class. The mapping between these measures and the bytecode
is presented in Appendix C. . . . . . . . . . . . . . . . 80
4.4 Flags extracted for each class. . . . . . . . . . . . . . . . . . 81
4.5 Dependency metrics computed for each class. . . . . . . . . 85
4.6 Inheritance metrics computed for each class. . . . . . . . . 87
5.1 Collected measures for distribution and change analysis
using the Gini Coefficient . . . . . . . . . . . . . . . . . . . . 103
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