An evaluation condition consists of a field expression. When you specify an evaluation condition, all data items of the specified field are matched against the condition.
To calculate the final result for all the tested data items, you must specify the action that should be taken for multiple data items. You can specify this action in the Advanced Settings dialog box of the Create Check wizard
See Create Check: Advanced Settings.
In the Advanced Settings dialog box, you can select either of the following options to specify the action for multiple data items:
See Operators AND and OR.