Every product in an online store is labeled with a variety of tags that identify its features, qualities, and category. Each item has a unique tag, indicating that each product is unique.
These tags include information about the product that a consumer should be aware of, such as color, size, brand measurement, usage, sale, and more. A dress, for example, may contain tags like black, midi silk, summer and sleeveless, and so on.
https://www.clasifai.com/post/autmated-product-tagging