One of the great improvements that the SysOperation framework has over the RunBaseBatch framework is that it generates the dialog for you. Fields on the dialog, for example, are generated based on the data contract. But if you want to change the dialog that is generated, you can use the UI Builder classes.
When we say custom UI Builders, we mean a class that extends the
SysOperationAutomaticUIBuilder class. This is the class that generates the dialog based on the data contract of your service operation. By extending this class, you can add your own logic to the building process. Most commonly this will include logic that: