| A | B |
| Alteration | improvement of an established product |
| Broad | many different product lines carried. |
| Consistency | associated with a narrow product mix. |
| Contraction | narrowing or decreasing number of product lines carried |
| Deep | extensive variety within a product line. |
| Expansion | increasing number of product lines carried |
| Narrow | limited product lines carried |
| Positioning | is all about perception |
| Product Depth | number of items offered within each product line |
| Product Item | specific model |
| Product Line | group of closely related products manufactured by a business |
| Product mix | all the types of products a company makes or sells |
| Product Width | number of different product lines |
| Shallow | limited variety within a product line. |
| Trading down | Adding a lower-priced item to a line of prestige products to encourage purchases from people who cannot afford the higher-priced product |
| Trading up | Adding a higher-priced product to a line to attract a higher-income market and improve the sales of existing lower-priced products. |