Range planning includes the creation of the ratio of garments to be selected in any given collection. For example, a basic range plan may be formed of four skirts, three trousers, six tops, two jackets and two dresses in three colour ways. Every collection needs a breakdown of units (garments) to enable the looks to be worn with enough combinations. If more volume sales come from tops it makes knowledge to supply more of these when editing the collection.
Very interesting list but I am surprised that Paul Poriet is not on this list. He revolutionized and created the modern fashion industry. Although in the end he could not survive in the industry he created his impact is huge. He was the first in many areas including freeing woman from corsets, using live models, creating a signature perfume, making an entire lifestyle brand, and modern marketing.