Product Structure
Style items have a unique product structure which consists of the style item root level 0 as the parent and its associated child items.
In the apparel industry, not only are a variety of products available; also, the customer base is spread across different age groups and genders. This diagram shows examples of different products and customers in the apparel industry:

Each product may have numerous variations. For example, a shirt can have many styles, colors, and sizes. To manage these product variations, you must define the product details using hierarchy levels. This diagram illustrates the hierarchy levels for a style item:

Use the first level of the product hierarchy, style item root level 0, to define general attributes of a product. The details that you specify at the style item root level 0 are inherited by the lower levels in the hierarchy. In addition to the basic attributes that are inherited from style item root level 0, you can specify additional information for the child item. These additional details are specific to the child items.
You define different variation levels in the product hierarchy by defining an item structure. This diagram illustrates the item structure definition:
