Architecting and designing : UML 2.5 : Model Elements : Data Types
  
Data Types
A DataType is a kind of Classifier. DataType differs from Class in that instances of a DataType are identified only by their value.
Subtypes of DataType are:
▪Enumeration
▪Primitive Type
See also
Association Node
CollaborationUse
Component
ConnectorNode
Connector Node (Invisible)
Structured Classifiers
Classifiers
TemplateSignature
Comment
Connector Node
Constraints
Dependency Nodes
InformationFlow Node
Instances
Ports
Property
Structured Classifiers
Part
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