In an issue query for Jira, what defines a bug?

In the context of an issue query for Jira, a bug is specifically defined by the issue type labeled as "Bug." This classification is a standard part of Jira's issue tracking system, where different types of work items are categorized to help teams manage their projects effectively. The "Bug" issue type is used to identify defects or problems in the software that need to be addressed. By filtering for issueType = Bug, users can quickly locate and prioritize the bugs that require attention. This specificity in categorization helps teams streamline their workflow, ensuring that bugs are tracked separately from features, tasks, or improvements, each of which has its own distinct purpose and process.