Association (1/3)

• Association between classes

  • association name (optional)
  • arrow above each edge expresses reading direction (optional)
  • arrow at the end of an edge expresses navigation direction (optional)
  • each end of an association is defined by means of multiplicity
  • for a binary association, the multiplicity on the target end contrains how many objects of the target class may be associated with a given single object from the other (source) end

• Link between objects

  • represents an instanceof an association

Calendar

Appointment

attachedTo

1..*

*

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