1. Check whether the data is filled in correctly: carefully check whether the data filled in meets the requirements, especially the distinction between required items and optional items.

2. Verify the logical relationship: ensure the consistency of data between tables. If there is a logical relationship error, we should find the wrong place and correct it.

3. Avoid repeated filling: ensure that the same data is filled in multiple tables only once to avoid the experience verification error caused by repeated filling.

4. Confirm the system version and update: ensure that the version of the statistical system used is the latest and has been updated to the latest version.