Human Design is a powerful system speaking of the science of differentiation. It helps us discover ourselves through your energetic uniqueness in terms of  mechanics and energetics.  It provides deep information about the human experience using algorithms that determine our neutrino influence on our consciousness. Variables are one aspect of human design that helps us understand our conscious awareness.

Through its mathematical system, we have figured out a system that absolutely matches the Meyers Briggs Personality Types, so that there is no longer a need for the bias tests.  Actually, we have found that people usually test slightly off from what they are actually designed as.

The variables are the 4 arrows near the top of the head energy centers on the Human Design Bodygraph.  The arrows on the left are your Design (body) variables where as the arrows on the right are your Personality (soul) variables. So for this chart, it would be a DLLPLL, as all the arrows point left. It is read from left top down and then right top down. 

This infomation provides you with a lot more resources to better understand yourself. Enjoy!