Attributes can be created under elements or complex types or directly at the root or in an attribute group for reuse.
There are global and local attributes:
-
Global attributes are defined with the Model menu. In a schema, they are directly linked to the <schema> tag (root element). They can be reused for any element in the model through references (See "NUMBER" attribute in the generated schema)
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Local attributes only apply to the elements in which they are created. They can be defined by reference to a global attribute (See Reference property)
Note:
In a model targeted with the XML-Data Reduced language, local
attributes are first declared separately, like global attributes (with the
<AttributeType> tag and a name attribute), then within their
parent element (with the <attribute> tag and a type
attribute).
Extract of an XDR file:
In a model targeting XSD, you can derive an attribute data type to extend or restrict its values. For example:
Generated schema:
