By this time in your training, we are looking at advanced pattern development of various fittings. This will begin to introduce us to a combination of methods and techniques and using them together in a process to create these types of fittings. It is essential to bring a complete understanding of various terms, techniques, and processes from years past, so to be able to link these together for an advanced pattern. The combining of parallel line, radial line and triangulation will become the norm.