The rules panel will allow the user to create a rule for any selected control.
The rules panel has
If the form is selected and you create a new rule, then this rule will be triggered in the form load. Similarly if the selected control is a Button, then the rule will be triggered when the end user clicks on the button. For the other data entry controls, the rule will be fired when the value changes in the control.
The actions to be taken when the current rule is fired.
The conditional actions that needs to be executed.