通过评估标准对产品范围的项目进行结构化组织。物料结构的描述包含与物料相关的数据，例如重量，尺寸，周转频率等。物料结构是拣选设备设计的决定性影响因素。

       Structured organisation of the items of the product range by evaluation criteria. The description of the item structure contains item-related data such as weights, dimensions, number of turnaround frequency, etc. The item structure is the decisive influencing factor for the design of order-picking equipment.