"one pen approval" is an internal control measure, but it is not the whole of internal control; "One approval" is also subject to the budget of the trade union; Internal control needs the joint efforts of more people or all people, including making some matters as public as possible; Approvers should try not to operate economic affairs independently.

The establishment and implementation of internal control should follow the following principles: comprehensiveness, importance, balance, adaptability and cost-effectiveness.

The internal control of extended data should form mutual restriction and supervision in governance structure, organization setting, power and responsibility distribution, business process and so on. , while taking into account operational efficiency.

Understanding its spiritual essence is actually: any economic matters, especially those that are relatively important, involve a large amount of money, involve a wide range and have great influence, should not be completed by one person independently. The theory circle once summarized the principle of checks and balances as "the four links of decision-making, operation, recording and supervision of any major issue should be completed by different people".

Shanghai Trade Union-One-stop Approval and Internal Control System