Link child objects to elements

Chapter 3 Building XML Models

Link child objects to elements

XML objects do not support standard PowerDesigner link objects. To link a child object to an element, you must click the child object tool in the palette and then click the element symbol in the diagram. This will automatically create a link between both objects. See the following table for allowed links:

Tool	Action
	If you click a parent element symbol with the Element tool, a sequence group particle and a child element symbol are created. You can modify the group particle via its property sheet
	If you click the upper part of a child element symbol with the Element tool, a brother element symbol is displayed above the child element symbol
	If you click the middle part of a child element symbol with the Element tool, a sequence group particle and a grand child element symbol are created. You can modify the group particle via its property sheet
	If you click the lower part of a child element symbol with the Element tool, a brother element symbol is displayed below the child element symbol
	If you click an element symbol with the Any tool, a sequence group particle and an any symbol are created. You can modify the group particle via its property sheet
	If you click an element symbol with the Group tool, a referencing group is created. You must now select a group for the reference
	If you click an element symbol with the Complex Type tool, a complex type symbol is displayed superposed, but not linked, to the element symbol. A global complex type cannot be the child of an element
	If you click an element symbol with the Sequence tool, a sequence group particle is displayed linked to the element symbol
	If you click an element symbol with the Choice tool, a choice group particle is displayed linked to the element symbol
	If you click an element symbol with the All tool, an all group particle is displayed linked to the element symbol

Pointer indications
When you cannot click a symbol or an empty space in a diagram, the Pointer displays a forbidden sign (See complex type in Tool column).
When there is a possibility to create a symbol above, below or next to another one, the Pointer displays an arrow indicating the corresponding direction (See elements in Tool column).