Function: (1) An abstracted description of work that a product must perform to meet customer needs. A function is something the product or service must do. (2) Term describing an internal group within which resides a basic business capability such as engineering.
功能:(1)产品满足消费者需求的抽象性描述。(2)对具有工程活动等基本商业能力的内部组织进行描述的术语。