| Name | Lines of code | Maintainability | Test coverage |
| app/assets/javascripts/osem.js | 106 | A 2 hrs | |
| app/controllers/admin/booths_controller.rb | 110 | B 4 hrs | |
| app/controllers/conferences_controller.rb | 113 | C 1 day | |
| app/models/ability.rb | 113 | A 3 hrs | |
| app/mailers/mailbot.rb | 116 | A 2 hrs | |
| app/helpers/application_helper.rb | 120 | A 2 hrs | |
| app/assets/javascripts/osem-schedule.js | 124 | A 1 hr | |
| app/controllers/admin/tracks_controller.rb | 126 | A 2 hrs | |
| app/helpers/versions_helper.rb | 138 | B 5 hrs | |
| app/controllers/admin/conferences_controller.rb | 140 | A 3 hrs | |
| app/controllers/proposals_controller.rb | 149 | A 3 hrs | |
| app/models/program.rb | 156 | B 4 hrs | |
| app/models/track.rb | 161 | A 3 hrs | |
| app/helpers/events_helper.rb | 167 | B 4 hrs | |
| app/controllers/admin/events_controller.rb | 169 | A 2 hrs | |
| app/helpers/format_helper.rb | 175 | A 1 hr | |
| app/models/user.rb | 210 | A 3 hrs | |
| app/models/admin_ability.rb | 238 | C 7 hrs | |
| app/models/event.rb | 245 | B 5 hrs | |
| app/models/conference.rb | 654 | F 3 days |