When generating a flow .xml file, the default rule is to replace the "from" string with the "to" string. However, there are more complex conversion rules when generating a flow .xml file. UNICOM^® Digital Transformation Toolkit (UDTT™) implements several predefined rules to convert existing processor objects. When technical developers create an object, they can create conversion rules to generate XML lines for the object. To create a new generation rule, technical developers must create a Java class to implement the rule, and then register the rule as a plug-in extension.