Chapter 3 Building Conceptual Data Models
You can modify an object's properties from its property sheet. To open an attribute property sheet, double-click its Browser entry in the Attributes folder within an entity, association, or inheritance.
The General tab contains the following properties:
| Property | Description |
|---|---|
| Name | The name of the item which should be clear and meaningful, and should convey the item's purpose to non-technical users |
| Code | The technical name of the item used for generating code or scripts, which may be abbreviated, and should not generally include spaces |
| Comment | Descriptive label for the attribute |
| Stereotype | Sub-classification used to extend the semantics of an object without changing its structure; it can be predefined or user-defined |
| [parent] | [read-only] Specifies the parent entity, association, or inheritance. Click the tool to the right of the field to open its property sheet. |
| Data Item | [read-only] Specifies the related data item. Click the tool to the right of the field to open its property sheet. |
| Data type | Form of the data corresponding to the attribute, such as numeric, alphanumeric, boolean, or others |
| Length | Maximum length of the data type |
| Precision | Maximum number of places after the decimal point |
| Domain | Name of the associated domain |
| Primary Identifier | [entity attributes only] Indicates whether or not the attribute is the primary identifier of the current entity |
| Displayed | [entity and association attributes only] Displays the attribute in the object symbol. |
| Mandatory | Specifies that the attribute must be assigned a value |
The following tabs are also commonly used:
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