liferay-portal/master PR's: This accounts for all CI builds (all test suites) related to the liferay-portal/master pull request jobs.
liferay-portal/master Upstream: This accounts for all CI builds related to liferay-portal/master upstream jobs. This includes acceptance upstream, test suite upstream jobs.
liferay-portal-ee PR's & Upstream: This accounts for all CI builds for pull request and upstream jobs related to non master branches.
Portal Release: This accounts for all CI builds related to the release job. Includes master and legacy branches.
Portal Fixpack & Hotfix Release: This accounts for all CI builds for fixpack and hotfix jobs across all portal branches.
CI Maintenance: This accounts for CI server upkeep jobs such as verification, maintenance daily, and maintenance weekly.
Other: This accounts for all other job types not in an above category.