Persistent repository for data types that are visible in all repository objects. Among other things, the database tables of the central database, views, and lock objects are managed in ABAP Dictionary. The classic objects in ABAP Dictionary are edited using the tool of the same name in ABAP Workbench. ABAP Dictionary is called using transaction code SE11. ABAP Dictionary also manages the objects from ABAP CDS that are defined in CDS source code in the ABAP Development Tools (ADT).