A command language should have flexibility to permit a user to assign personal names to frequently used commands.
Additional Information:
Frequently used commands should be easy for a user to enter. For users who must move back and forth between different systems with differently defined command languages, some flexibility in command naming will permit those users to establish their own consistent terminology. Where this capability exists, several cautions should be observed. Before users can be allowed to adopt their own assigned command names, the computer must check those names to prevent duplication. In addition, there is a potential risk of confusion if users forget what names they have specified for commands and data files. The computer should maintain a current index of command and file names for on-line user reference.