The typical data flow for a perl script serves a web page looks like this: 
 Web browser  ---->  Web server ----->  +--------+
              HTTP               CGI    | Your   |
                                        | Perl   |
                                        | script |
 Web browser <----- Web server <------  +--------+

CGI refers to a protocol for exchanging data between the web server and your perl script. (It is not the CGI perl module).

There are other methods for communicating between a perl script and a web server, popular ones include FastCGI and mod_perl.

So, for answering the question whether your program runs a CGI script you have to look into the configuration of your web server. Using the CGI Perl module doesn't change that, it just makes your program simpler.

In reply to Re^7: $ENV{'REQUEST_METHOD'} undefined? by moritz
in thread $ENV{'REQUEST_METHOD'} undefined? by Lamont85

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