This document defines bug tracking terms and provides guidance on effective bug reporting. It explains that a bug tracking system is used to keep track of reported software bugs. Effective bug reports are clear, contain one bug each, and include all necessary information like steps to reproduce, expected vs. actual results, and environment details. The lifecycle of a bug involves states like open, in progress, resolved, reopened and closed. Popular bug tracking systems include JIRA, Bugzilla, Mantis and others.