A data items filter lets you filter the data against which the field expression is evaluated in a check.
A data items filter is composed of one or more filter statement. Each filter statement is a field expression.
See Field expression.
You can specify a data items filter in the Advanced Settings dialog box when you create or edit a check.
If you specify multiple filter statements, then the final data for evaluation is determined by the following options:
Return only the data which matches all of the filter statements.
The AND operator is applied on the result of each filter statement to determine the final data for evaluation purpose.
Return only the data which matches any one of the filter statements.
The OR operator is applied on the result of each data item to determine the final data for evaluation purpose.