Understanding Jira and screens
Before you can start working with screens, you need to first understand what they are and how they are used in Jira. Compared to a normal paper-based form, fields in Jira are like checkboxes and spaces that you need to fill in, and screens are like form documents themselves. When fields are created in Jira, they need to be added to screens for them to be presented to users.
In most cases, screens are associated with issue operations such as creating, viewing, and editing issues. This association is defined in screen schemes. This allows you to have different screens for different operations. Screen schemes are then associated with issue type screen schemes, which, when applied to projects, will map screen schemes to issue types. This lets each issue type in a project have its own set of screens. The only time a screen will be used directly is when it is associated with a workflow transition. In Jira, a workflow defines the various statuses an issue...