Master accounts, cards and payment processes. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.Master accounts, cards and payment processes. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.Master accounts, cards and payment processes. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.