What structure does product data in Magento use?

The correct choice is the EAV structure, which stands for Entity-Attribute-Value. This data modeling approach is particularly beneficial in scenarios where products have a wide variety of attributes that can differ significantly from one product to another.

In Magento, the EAV model allows for a flexible and scalable way to store product attributes. Each product is represented as an entity, with its characteristics being stored as separate attributes and their corresponding values. This flexibility means that merchants can add or modify attributes without the need for significant changes to the underlying database schema.

For example, a clothing item may have attributes such as size, color, and material, while an electronic product might include attributes like battery life, screen size, and technology specifications. The EAV structure accommodates all these differing needs effectively.

Using this system allows Magento to handle complex product catalogs easily, ensuring that it can support a broad range of products and accommodate various business models. This flexibility is one of the key reasons Magento is a popular choice among e-commerce developers and businesses alike.