In a supermarket, it is better not to divide more than ten categories, which is easier to manage. However, this still depends on the operator’s business philosophy. If the operator wants to expand the scope of his business to a wide range of areas, he may have to use more categories. The principle of large classification is usually divided according to the characteristics of commodities, such as production source, production method, processing method, preservation method, etc. A large group of similar commodities are grouped together as a large classification. For example, aquatic products are a large classification. The reason is this The sources of classified commodities are all related to water, sea or river, and their preservation methods and treatment methods are also similar, so they can be classified into a large category.
　　 classified in
　　 (1) According to the function and purpose of the product
　　 classification principle
　　 is classified according to the function or purpose of the products when they are used by consumers. For example, in the big category of sweets and biscuits, a "breakfast-related" medium category is divided. Breakfast connection is a concept of function and purpose. The provision of these products is to provide consumers with a "rich breakfast". Therefore, toast, bread, jam, peanut butter, oatmeal and other products can be assembled in the category to form this category.
(2) Divided according to the manufacturing method of the product
　　Sometimes, some products are not exactly the same in use. It is a little difficult to divide them by purpose and function. At this time, we can approximate the methods of product manufacturing. For example: in the major classification of livestock products, there is a middle classification called "processed meat". This middle classification includes ham, sausage, hot dog, fried chicken nuggets, bacon, bacon and other commodities. Their functions and uses are endless. The same, but similar in manufacturing, so "processed meat" has become a medium cate