The documentation can be installed on each individual machine or on a shared location e.g. on a server. We recommend that if there are a large number of CATIA users, then installing on a shared location would be best suited.
Having the CATIA Documentation files installed allows the user to access the help files through CATIA. The Help files provide documentation on basic tasks, advanced tasks, glossaries, customisation (toolbars, standards and settings) and more.
If the documentation is all set up correctly to access it, simply either press F1 or Help > CATIA V5 Help
If you are unsure how to set up the documentation for CATIA, please submit a support ticket.