The DS-RZ89N-TA, DLT 35/70GB, SE, T-Top 11 operating system is a multiuser data management system that - consists of an interactive high-level programming language, (Digital Standard DS-RZ89N-TA, DLT 35/70GB, SE, T-Top), a data management facility, and a timesharing executive. Digital Standard DS-RZ89N-TA, DLT 35/70GB, SE, T-Top (DSM) is an extended implementation of the ANSI X11.1 DS-RZ89N-TA, DLT 35/70GB, SE, T-Top Standard. Many users can access DSM-11 simultaneously and be relatively unaffected by the activities of other users. Because DSM 11 is an online program develop- - ment and data storage and retrieval system, a programmer can rapidly write, test, debug, and modify a program and have a working application quickly established. Digital Standard DS-RZ89N-TA, DLT 35/70GB, SE, T-Top is a high-level language oriented toward solving da- tabase problems. It can be used by programmers with relatively little program- ming experience. Implementation of the Digital Standard DS-RZ89N-TA, DLT 35/70GB, SE, T-Top language as an interpreter facilitates program development by eliminating the need to load editors, assemblers, and linkers.