In Jira projects, there are a few roadmap concepts to consider.
Theme : It is the main goal of the project
Epic : This is the work item that is broken down into several parts. These parts are tasks and are generally known as stories that describe what the end-user wants.
Start and Due Dates : These appear as horizontal bars on the roadmap. Users set dates on every epic.
Filters : Jira has its native filters that allow you to use keywords to find what you are looking for.
Issue Links : These are also known as dependencies. They are mapped and show in which order they should be completed.
Sharing and Exporting : The sharing feature lets you share the roadmap with stakeholders instantly. You can even export the roadmap as an image file.