| System | Number of Developers | Number of Bugs/Features | Average Accuracy (%) | Average Ranking Effectiveness | ||||||
| File | Pkg | Sys | Ovl | Rf | Rp | Rs | Ro | |||
| KOffice (17 days history) | 10 | 18 | 1.1 | 12.8 | 16.7 | 22.2 | 3 | 3.5 | 1 | 3.1 |
| KOffice (1 month history) | 10 | 18 | 2.8 | 25.6 | 33.3 | 42.2 | 6.5 | 2.9 | 1 | 2.1 |
| KOffice (2 months history) | 10 | 18 | 4.4 | 36.7 | 55.6 | 61.1 | 6 | 2.4 | 1 | 1.3 |
| KOffice (4 months history) | 10 | 18 | 5 | 39.4 | 55.6 | 62.8 | 6 | 2.6 | 1 | 1.6 |
| KOffice (All history) | 10 | 18 | 15.6 | 55 | 72.2 | 80 | 5.1 | 2 | 1 | 1.3 |
| ArgoUML | 5 | 15 | 23.3 | 59.3 | 20 | 64.7 | 3.4 | 1.7 | 1 | 1.7 |
| ArgoUML | 10 | 23 | 17.4 | 75.2 | 69.1 | 95.7 | 3.6 | 1.3 | 1.4 | 1 |
| Eclipse 2.0 | 10 | 14 | 13.6 | 34.3 | 57.1 | 75 | 3.5 | 2.9 | 1 | 1.4 |
| Eclipse 3.0 | 10 | 14 | 15.7 | 27.1 | 35.7 | 47.1 | 3.4 | 2.7 | 1 | 1.8 |
| Eclipse 3.3.2 | 10 | 14 | 27.9 | 36.4 | 71.4 | 82.1 | 2.9 | 2.9 | 1 | 1.6 |
Summary of developer recommendation average accuracies obtained using automatic queries for all systems at the File, Package (Pkg), System (Sys), and Overall (Ovl) levels. The average accuracy values are obtained from the accuracy values of all of the bugs evaluated in the particular system. The average ranks for the first relevant recommendation on file (Rf), package (Rp), system (Rs) and overall (Ro) levels are provided.