25 Twitter #NIEMNTE3 Some more examples Business Rule: Items with color attributes don t need a tray number—the color is sufficient for picking the item: Business Rule: If order weight exceeds 25 kg, purchase order must specify a freight carrier: 25 action= makeMandatory(//Item/FreightHandler) > Using XPath axis referencing (when things are not adjacent in hierarchy): * Excerpted from Michael Sorens DEVX CAM article examples
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