i) At the Application level 1 2410, its value is checked (step 2413) and is used, for example, to specify the type of Document root class to generitically inherit, or to specify the type of Menu Layout class to generitically use. ii) At the Class level 2 2411, its value is checked (step 2414) and is used, for example, to specify types of classes to generitically load and link with the current appl