Architecting and designing : SysML : Relationships : Generalization
  
Generalization
The Generalization relationship enables you to separate a classifier from one or more refined versions of the classifier. For example, to differentiate between a Truck, and a Pickup Truck.
Relates
The Generalization relationship can be drawn like this:
From
To
▪Any Classifier
▪Any Classifier
See also
Association
Dependency
Realization
BlockNamespaceContainment
Comment to AnnotatedElement
Constraint to ConstrainedElement
Connector
ElementGroup to Element
Instance Specification Relationships
Package Containment
Package Import
Port Provides (Realizes) Interface
Port Requires (Uses) Interface
Substitution
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Relationships