The following means of representation are used in this manual:
- References to other publications are specified in the form of abbreviated titles in the text. The full title of each publication, to which reference is made by a number enclosed in square brackets, is shown under “Related publications” alongside the relevant number. 
- In the examples, user inputs and system outputs ar shown in - fixed-pitchtypeface.
- Special notes on the metalanguage or symbols used only for one SECOS component are provided at the beginning of the related chapter of the manual. 
- The metasyntax for SDF commands and statements and the means of representation of command return codes and S variables and macros are explained in the „BS2000OSD/BC - Commands“ manual [4]. 
- The metasyntax for macros is explained in the „BS2000OSD/BC - Commands“ manual [15]. - This symbol and the word CAUTION! precede warning information. In the interests of system and operating security you should always observe this information. - This symbol denotes important information which you should always observe.