Such systems work much like the ID cards used for people-under them, fruits, vegetables and meats are all tagged with ID numbers that allow consumers to trace their entire production history from farm to fork. In this way, the systems forge a bond of trust between producers and consumers.
如同人類使用的身分證，建立「生產履歷」的肉類、蔬果，也有一個身分證字號，讓消費者藉此了解食物「從田間到餐桌」的所有產製流程，它將為生產者與消費者之間牽起一條互信的線。