In JIRA, restricting certain users from performing specific transitions can be achieved by adding conditions to the workflow transitions. These conditions can be based on user roles, groups, or other criteria, ensuring that only authorized users can execute certain transitions based on predefined criteria.

A Kanban board in JIRA Agile is used to visualize and manage work in progress. It allows teams to see what tasks are currently being worked on, what's in the backlog, and what's completed. This helps teams to prioritize tasks, identify bottlenecks, and maintain a smooth workflow.

External integrations and plugins are managed through the JIRA Administration section. Here, administrators can install, configure, and manage various integrations and plugins to extend JIRA's functionality and integrate it with other tools and systems.

The user needs "Create Projects" permission to initiate the creation of a new JIRA project. This permission allows users to create new projects within the JIRA instance.

A common best practice when defining workflow transitions in JIRA is to limit unnecessary transitions. This helps maintain clarity and prevents confusion among team members, ensuring that workflows remain efficient and focused on essential tasks.

The "Sub-task" issue type in JIRA allows for breaking down larger tasks or issues into smaller, more manageable sub-tasks. These sub-tasks can then be assigned, tracked, and completed independently within the larger task or issue.

Agile methodology acknowledges that changing requirements are inevitable and even desirable in a dynamic business environment. It embraces change throughout the project lifecycle and views it as an opportunity to deliver better value to the customer. Agile teams frequently collaborate with stakeholders to understand changing needs and adjust their plans accordingly, often through iterative development and continuous feedback loops.

SLAs (Service Level Agreements) can be used in JIRA Service Desk to set specific response and resolution time goals for tickets. By establishing clear expectations, SLAs help prioritize tasks and ensure timely resolution, thereby enhancing customer satisfaction and service quality.

Integrating JIRA with other tools offers increased visibility into project progress, allowing teams to make informed decisions and identify bottlenecks more efficiently.

JIRA Filters allow users to define specific criteria to narrow down the issues displayed. By creating a filter based on priority and applying it across all projects, the highest-priority issues can be isolated effectively.