A quad chart is a form of technical documentation used to briefly describe an invention or other innovation through writing, illustration and/or photographs.[1] Such documents are described as "quad" charts because they are divided into four quadrants laid out on a landscape perspective.[2][3][4] They are typically one-page only; their succinctness facilitates rapid decision-making.[5] Though shorter, quad charts often serve in a similar capacity to white papers and the two documents are often requested alongside one another.
^James E. Driskell and Jennifer King, "Conducting Applied Experimental Research." Taken from Laboratory Experiments in the Social Sciences, part three, pg. 341. Eds. Murray Webster and Jane Sell. Waltham: Academic Press, 2007. ISBN9780123694898