PlantUML: Arrow to specify more meaning to the relationship label

Using the arrow (< or >), we can clearly specify which object act on other object.

 

Example

Person --> Address : lives at >
Car --> Person : < owns

labelArrow.txt

@startuml

title "Class Composition"

class Person
class Address
class Car

Person --> Address : lives at >
Car --> Person : < owns

@enduml

Above snippet generate below diagram.

 

 

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