This is Perl module Sledge::Model::Factory.
INSTALLATION
Sledge::Model::Factory installation is straightforward. If your CPAN shell is set up,
you should just be able to do
    % cpan Sledge::Model::Factory
Download it, unpack it, then build it as per the usual:
    % perl Makefile.PL
    % make && make test
Then install it:
    % make install
DOCUMENTATION
Sledge::Model::Factory documentation is available as in POD. So you can do:
    % perldoc Sledge::Model::Factory
to read the documentation online with your favorite pager.
Tokuhiro Matsuno