1. Commodity service-API-SPU and SKU

1、SPU

standard product unit(Standardized product unit): It is the smallest unit of commodity information aggregation, and it is
a set of reusable and easy-to-retrieve standardized information, which describes the characteristics of a product.
Such as iphoneX is SPU

2、SKU

stock keeping unit(Inventory unit): The basic unit of inventory in-out measurement, which can be 件/盒/ 托盘equal to the unit.
SKU is a necessary method for the logistics management of DC distribution centers of large supermarket chains.
Now it has been extended to the abbreviation of product unified number, and each product corresponds to a unique SKU number.
For example, iphoneX 64G black is the SKU

3. Specification parameters (basic attributes)

The characteristics owned by the same SPU are called basic attributes.
Such as the length of the fuselage, this is an attribute shared by mobile phones. And every
The property values are different for different phones

4. Sales attribute

The sales attribute that can determine the inventory quantity (SKU) is called. such as color

5. Basic attributes [specification parameters] and sales attributes

Commodities under each category 共享规格参数, and 销售属性. It’s just that some products don’t necessarily need to use
all the attributes under this category;

Attributes are organized in three levels of classification
Some of the specs are 提供检索ok
Specification parameters are also basic properties, they have自己的分组
The grouping of attributes is also organized in a three-level classification
The attribute name is determined, but the value is determined by each product.

6. pms database table

pms_attrAttribute table under pms database , pms_attr-groupattribute grouping table

attr-group-id: group number
catelog-id: What kind of category, such as mobile phone

Find spu-id, attr-id according to the product

First find the corresponding attribute group by classification, and then find the owned attributes according to the attribute group.

7. Attribute relationship-specification parameter-sales attribute-three-level classification association relationship

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8. SPU-SKU attribute table