Design, document and test internal controls. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.Design, document and test internal controls. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.Design, document and test internal controls. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.