posted 12 years ago
Can somebody explain me how the composite relationship and the 0..1 multiplicity can coexist together? Let's see at the attachment: EncapsulatedClassifier - Port relationship (from UML 2.1 spec):
EncapsulatedClassifier is a structured classifierPort is a PropertyProperty is a part of StructuredClassifierIt means to me that Port can not exist without a EncapsulatedClassifier as its part
So - What the 0 in 0..1 multiplicity means? In my current understanding of this only 1 multiplicity would be correct...
uml_cpomposite_01.png