Two paragraphs (3 to 8 sent. each) about Category Development Index (one - two reference links)

Definition: "The category development index (CDI) is computed in the same manner as is the BDI except it uses information regarding the product category (as opposed to the brand in the numerator. The CDI provides information on the potential for development of the total product category rather than specific brands. When this information is combined with the BDI, a much more insightful promotional strategy is developed."