Velocity is usually measured in story points, which represent the relative effort or size of user stories or tasks completed by a team during a sprint. It helps teams in planning and forecasting future work.

The main difference between Agile and Waterfall methodologies lies in their approach to project management. Agile emphasizes flexibility and iterative development, allowing for changes and adaptations throughout the project, whereas Waterfall follows a sequential approach with distinct phases, making changes more difficult once a phase is complete.

When designing workflows for compliance, it's crucial to document and audit all workflows for traceability. Documenting workflows helps ensure that the workflow accurately reflects the compliance requirements, and auditing ensures that the workflow is followed correctly. Transitions represent the different states an issue can move through in a workflow. Screens represent the user interface elements for capturing or displaying information. Projects represent collections of issues.

In Agile methodology, the Product Owner is responsible for prioritizing the product backlog, ensuring that the team works on the most valuable tasks first. This role involves collaborating with stakeholders to understand their needs and conveying those needs to the development team through user stories.

Project administrators can configure Assignee Rules to automatically assign issues to specific users or groups based on predefined criteria. This helps streamline the process by ensuring the right people are responsible for handling each issue.

In JIRA, you can control work in progress (WIP) limits on a Kanban board by setting WIP limits for each column. These limits help teams maintain a manageable workload and prevent bottlenecks in the workflow. By defining WIP limits, teams can focus on completing tasks rather than starting new ones, which improves overall efficiency and delivery speed.

A JIRA workflow is a series of steps (statuses and transitions) that an issue goes through during its lifecycle within a project. It defines the process from creation to completion or resolution of an issue. Understanding JIRA workflows is fundamental for effective issue tracking and project management.

JIRA is primarily a project management software used for tracking and managing tasks, issues, and projects. It is not a customer relationship management or any other type of software mentioned.

In JIRA, to move an issue from one status to another, you need to perform a transition. Since the issue is currently in the "In Progress" status and needs to be moved to "Testing," the appropriate transition would be to transition the issue directly to the "Testing" status. Hence, the correct option is Transition to Testing.

In JQL, the "order by" clause is utilized to sort the search results based on specified criteria, ensuring the results are presented in a desired sequence. Filtering, grouping, and aggregating are not the primary functions of the "order by" clause in JQL.