
Defining derivations
The Content box is set to Complex.
2Click Apply.
3Click the Properties tool beside the Derivation box. The restriction property sheet appears.
4Type an ID and a base type for the complex type restriction.
5 Click OK.
Deriving by list
You derive a simple type by list when you want to define it as a list of values of a specified data type.
The General page of a simple type list property sheet displays the following properties:
  | Property | Description  | 
  | ID  | ID of the simple type list. Its value must be of type ID and  | 
  | 
  | unique within the model containing the simple type  | 
  | 
  | restriction  | 
  | Type  | Data type for the list of values  | 
  | Embedded Type  | If selected, the type disappears and a simple type is created in  | 
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  | the schema within the current simple type  | 
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  | PowerDesigner  | 
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