Hi Satish,

Below is the explanation of these methods:

Start-Validate(Compile referencing rules for a custom rule type):

Use this method only when building custom rule types, to start the internal processing that develops rule references. Use this method as the first step in an activity of Activity Type Validate when the class of the activity is a Rule- class and rule referencing is to be available.

End-Validate(End compilation of referencing rules, for a custom rule type):

This method is used only for custom rule types, to end the processing that develops rule references. Use this method as the last step in an activity of Activity Type Validate when the class of the activity is a Rule- class and the Start-Validate method was used as the first step.

Regards,

Vikash