Card, device, product and product management system

摘要

A card, device and product management system, including a card management means enables a card manager participant to perform a card management role alone, without managing products associated with a card and without managing devices; a device management means which enables a device manager participant to perform a device management role alone, without managing products associated with the card and without managing cards; and a product management means, which enables a product owner participant to perform a product management role alone, without managing cards and without managing devices, whereby all three roles can be performed by separate entities.