| Direct Mapping | Reverse Mapping |
| Please refer to picture 6.26. | Please refer to picture 6.28. |
| Component: | Component: |
| Y_EM_CONTEXT : | Y_EM_CONTEXT_RM : |
| 1. get records from Database | 1. get records from Database |
| 2. doesn't contain any view | 2. a view to embed interface view |
| 3. define a node STUDENT with attribute | 3. define usage of component Y_EM_LAYOUT_RM |
| Interface Node: Yes (can access by other component) | 4. define a InterfaceController_usage, mapping Student to that of Y_EM_LAYOUT_RM. |
| Input Element: NO (can't Input by other comp. ) | 5. In WDDOINIT, append some records to Node STUDENT. |
| 4. In WDDOINIT, append some records to Node STUDENT. | Y_EM_LAYOUT_RM: |
| Y_EM_LAYOUT: | 1. show records in a table |
| 1. show records in a table | 2. define a node STUDENT with attribute |
| 2. define usage of component Y_EM_CONTEXT | Interface Node: Yes (can access by other component) |
| 3. mapping the two STUDENT from Y_EM_CONTEXT and Y_EM_LAYOUT in tab context. | Input Element: Yes ( Input by Y_EM_CONTEXT_RM) |
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Direct and Reverse mapping
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