You can modify details of a logical model using the Edit Logical Model page.
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On the Discovery menu bar, click Model.
The Logical Model tab is displayed by default.
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Select the check box next to the model you want to modify.
Note: You can search for a specific model using the Filter field on the top of the page. It searches the models by the model name.
- Click the Edit Model button .
- You can edit the name for the model in the Name field.
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From the Entities palette, select whether to use the
Logical entities or the entities defined in the
Glossary to create the model.
Tip: Use the drop-down list in the palette to filter Logical or Glossary entities based on categories.
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Drag an entity to the canvas.
The entity is added to the canvas and its properties are displayed in the Properties panel on the right side of the page.
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Enter a name for the entity in the Entity Name
field.
By default, entities of the same type are named in ordinal sequence (for example, "Document", "Document1", "Document2", …).
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To define a new property for an entity:
- Select the entity, and if necessary click the PROPERTIES tab to expand the Properties panel.
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On the Properties panel, enter details for the
selected entity:
Field Description Name Name of the attribute, for example, age. Semantic Type Semantic type of the data for this attribute. Note: When you select the semantic type, the related data type is displayed in the Type field.Type Data type for the attribute. -
Click the Add button. The defined attribute, and
its semantic and data type are displayed below the entry fields.
Note: You can delete a property by clicking the Delete button adjacent to it.
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To create relationships among entities, perform these steps:
Note: An entity can have multiple relationships to other entities as well as to itself.
To add a relationship to Do this Another entity Drag from the entity to the other entity. The same entity Drag from the entity to itself. A relationship is indicated by a relationship link pointing from the primary entity to the related entity, or to the same entity for a self-relationship. By default, relationships are named in ordinal sequence (relation, relation1, relation2, …).
Note: As in case of entities, you can add or edit properties for a relationship in the Properties panel. For more information, see step 8. -
To delete an entity or relationship, select it and click the Delete button.
When you delete an entity, any relationships with it are also deleted.
- Click Save.
The selected model is updated and listed in the Models tab of the Modeling page.