Kwalitee is an automatically-measurable gauge of how good your software is.
That's very different from quality, which a computer really can't measure in a
general sense. (If you can, you've solved a hard problem in computer science.)

In the world of the CPAN, the CPANTS project (CPAN Testing Service; also a
funny acronym on its own) measures Kwalitee with several metrics. If you plan
to release a distribution to the CPAN -- or even within your own organization
-- testing its Kwalitee before creating a release can help you improve your
quality as well.

Test::Kwalitee and a short test file will do this for you automatically.