What is the difference between the Security Scheme and Screen?
Security Schemes are user and group centric. They determine what rights/permissions a user/group has for a Project/Issue/Gemini Administration e.g. View Project, Create Issue, Create Comment, Edit Issue. For more information please refer to the Gemini Management Guide.
Screens are Project Issue centric. They determine which Issue attributes e.g. status, priority, severity, resources, custom fields etc. are displayed.