Design and Construction Chapter 2 Introduction It is important for the aspiring rigger to understand basic  design parameters and construction techniques of modern  parachute systems. The master rigger must have a thorough  understanding of these areas to perform any desired or  necessary alterations. An understanding of how the systems  or components were originally designed, and why they were  constructed as they were, is essential. Any proposed alteration  may degrade the function and/or structural integrity of the  assembly or component thereby causing it to fail.