Chapter 4 Building Conceptual Data Models
You can modify the following display preferences of an association using the Tools→Display Preferences command:
| Group box | Preference | Display description |
|---|---|---|
| Association | Attributes | Name or code of the association* |
| Display Limit | Maximum number of attributes displayed in symbol | |
| Stereotype | Stereotype of the association | |
| Comment | Comment of the association. When selected, all other check boxes are deselected, except for Stereotype | |
| Association attributes | Data types | Data type of association attribute |
| Replace by domains | Domain for each association attribute. You can only display domains when the Data types check box is selected | |
| Domains | Domain of each association attribute | |
| Mandatory | Letter M beside each mandatory association attribute | |
| Stereotype | Stereotype of the association attributes |
*Displayed text depends on whether the Name or Code radio button is selected.
You can display the domain and data types in the symbol of an association. There are four display options available:
| Selected checkbox | Result | Symbol |
|---|---|---|
| Data types | Displays only the data type, if it exists | 
|
| Domains | Displays only the domain, if it exists | 
|
| Data types
Domains |
Displays both data type and domain, if they exist | 
|
| Data types
Replace by domains |
If domain exists and data type does not exist, then displays domain.
If domain does not exist and data type exists, then displays data type. |
|
Moving text on a relationship symbol
When a relationship symbol displays text, the text position is based on the position of handles. You can add a handle on the relationship symbol by pressing ctrl while you click the symbol.
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