Reference Data Defines Meta Data for items in the Repository
Reference data is used universally in Enterprise Architect as meta-information for properties and base values for repository items including elements, features and connectors and tool features. It is often seen in drop-down lists and selection boxes, and includes such items as Status Codes, Requirement Types, Model Authors and more.
General Types window showing Status Types including color settings for each type.
For convenience, Enterprise Architect comes pre-configured with useful reference data, but it is best practice to review this existing data when setting up a project and either replace or edit it to ensure it is appropriate for your organization's projects.