Architecting and designing : SysML : 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
Block
Comment
Connector Node
Constraints
Classifiers
Dependency Nodes
InformationFlow Node
Instances
Ports
Property
Structured Classifiers
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