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CHAPTER 2: XML Diagrams
Property
Description
ID
ID of the extension. Its value must be of type ID and unique within the model
containing the extension
Base Type
Data type on which the extension is based
3. Specify an ID, select a base type, and then click OK to return to the element or complex
type.
Deriving by Restriction
You can derive an element, simple type, or complex type by restriction to restrict the values of
their base type.
1. Open the property sheet of an element, simple type, or complex type, and select Restriction
in the Derivation list.
For elements and complex types, the Content field (and, in the case of an element, the
Embedded type field) is set to Complex.
2. Click the Properties tool to the right of the Derivation field to open the restriction
property sheet, and complete the following fields on the General tab:
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