
Chapter 2 Building an XML model
♦In the generated XSD file, the group is first declared with the <group> tag and then reused through a reference (ref) set to descriptionLines:
♦In the generated DTD file, the group is expanded directly within its parent element:
♦In the generated XDR file, the group is declared through a <group> tag, within an <ElementType> tag with its order attribute set to seq:
Defining group properties
There are global and referencing groups:
♦Global groups are directly created in a diagram without a parent symbol. In a schema, they are directly linked to the <schema> tag (root element). They can be reused within any element or complex type of the model through references (See descriptionLines in Defining a group of elements)
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