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==4. Create References and Links==
References define which object types a connection (link) may point to, while links, implemented as a property of type Guid, actually establish this connection between two instances. Both elements are required to model directed relationships between objects within the UBIK® data model, e.g. to point from one object to another without needing a fixed parent-child structure.
To create a reference, navigate to Custom->Reference and drag Custom->Reference->REFERENCE into the BulkEditor (to access the content view, you must switch to the content area in the ClassBrowser). Then, specify the Name, Description, Namespace, and TargetType. When creating a new reference—for example, REF_ANLEITUNG—the corresponding metaclass ANLEITUNG must be set as the TargetType.
[[File:createReferencesAndLinks1.png|thumb400pxthumb|400px|left]]
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==5. Create View==
To add the ReferenceViewItem to the view, open the corresponding view in the RelationEditor: Custom -> View -> VIEW -> CUSTOM -> CUSTOM -> TEMPLATE -> VIE_01. The ReferenceViewItem can then be assigned to the view.
To add the ReferenceViewItem to the view, open the corresponding view in the RelationEditor: Custom ->View ->VIEW ->CUSTOM ->CUSTOM -> TEMPLATE ->VIE_01. The ReferenceViewItem can then be assigned to the view.
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==6. Rebuild==