Auditing usually refers to auditing, reviewing and verifying the data and information provided by upstream nodes in a business process node, with the emphasis on "auditing". The purpose is to check whether these data and information meet the standards stipulated by the enterprise management system, and if they meet the requirements, approve them; If it does not meet the requirements, it will be rejected, and the upstream node will be notified to modify or supplement it. If it cannot be modified or supplemented, it can be directly submitted to the superior leader for approval, and the superior leader will make a decision.