Reasons for needing a part number include to recognize a specific model of an item or label that a manufacturer uses to list its product. It makes it easier to refer to the merchandise.
Industries use a two-part numbering method. They use the intelligent and nonintelligent classification. In the intelligent grouping of a product, they incorporate the part number by intellectual coding. For example, they take the characteristics of the product and implement them in the part number. In the nonintelligent assigning of the number, they randomly allocate a part number. The nonintelligent numbering is simpler to create and control.