The rule editor enables users to add logic to AEM Adaptive Forms. AEM 6.3 improves the rule editor in several ways making it easier and faster for both technical and non-technical users alike to add intelligence.
Some of the improvements to the Rule Editor include:
Multi-value form components display the component options automatically
The ability to specify a WSDL web service in the visual editor
The ability to disable rules
Enhancements to the code editor such as:
Hints and suggestions for Form objects, functions, and properties