
Defining elements
Example of an XDR file:
Element detail properties
The Detail page of an element property sheet displays the following properties:
  | Property | Description  | 
  | Minimum  | Minimum number of times the element can occur. To  | 
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  | specify that the element is optional, set this attribute to zero  | 
  | Maximum  | Maximum number of times the element can occur. For an  | 
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  | unlimited number of times, select unbounded  | 
  | Substitution group  | Name of a global element for which the current element can  | 
  | 
  | be substituted. It must have the same type or a derived type.  | 
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  | Its value must be a qualified name (See Glossary)  | 
  | Default  | Default value of the element if its content is a simple type  | 
  | 
  | or   | 
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  | value  | 
  | Fixed  | Predetermined, unchangeable value of the element if its  | 
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  | content is a simple type or   | 
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  | only if there is no default value  | 
  | Block  | Property to prevent another element with the same type of  | 
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  | derivation from being used in place of the current element  | 
  | Final  | Property to prevent derivation of the current element.  | 
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  | Prohibited if the element is not a global element  | 
  | Form  | Form of the element. Used to specify the target namespace  | 
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  | of the element. If you select Qualified, a namespace prefix  | 
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  | is required to qualify the element. If you select  | 
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  | Unqualified, a namespace prefix is not required to qualify  | 
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  | the element  | 
  | ID  | ID of the element. Its value must be of type ID and unique  | 
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  | within the model containing the element  | 
  | Abstract  | Property defining if the element can appear in the instance  | 
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  | document or not. If selected, the element cannot appear in  | 
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  | the instance document  | 
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  | PowerDesigner  | 
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