Extended Case Study Results
# System Initial Version Final Version Interval (Days) #Warnings HP #Warnings HP + CT Relevance HP (%) Relevance HP + CT (%) Relevance Developers (%)
Number Date KLOC Number Date KLOC Initial Final Initial Final
1 JEdit 4.0.3 06/2002 42.1 4.1 05/2003 46.9 343 37 19 15 3 49.0 80.0 -
2 Jung 1.7.1 10/2005 30.6 1.7.5 10/2006 31.8 363 15 15 3 3 0.0 0.0 0.0
3 FreeMind 0.9.0 b17 05/2008 38.4 0.9.0 RC4 05/2009 39.6 381 43 41 6 6 4.7 0.0 16.6
4 JGraph 5.10.2.0 11/2007 14.8 5.12.2.1 11/2008 15.0 350 25 25 2 2 0.0 0.0 0.0
5 ArgoUML 0.26 09/2008 135.4 0.28.1 08/2009 134.5 323 42 42 11 11 0.0 0.0 54.5
6 Tomcat 5.5.9 10/2005 116.9 6.0.0 10/2006 117.6 371 144 126 24 14 12.5 41.7 -
7 Struts 2 2.0.14 11/2008 38.6 2.1.8.1 11/2009 75.1 354 5 1 0 0 80.0 - -
8 Jetty 6.1.14 11/2008 63.1 6.1.22 11/2009 67.4 368 43 43 4 4 0.0 0.0 75.0
9 Xerces 2.7.1 7/2005 82.5 2.8.1 9/2006 84.0 414 48 48 13 13 0.0 0.0 0.0
10 Jython 2.5 a3 09/2008 74.1 2.5.1 rc3 09/2009 156.3 378 74 60 10 4 18.9 60.0 -
11 JabRef 2.5 b 04/2009 55.0 2.6 b3 03/2010 57.0 320 149 148 7 7 0.7 0.0 85.7
12 PDF Sam 1.1.2 04/2009 12.7 2.2.0 03/2010 19.9 358 5 3 3 1 40.0 66.7 -