UML Diagrams Zicomi Systems publishes some UML example diagrams online from the world famous UML dictionary. more...
Version 2.5 Released Zicomi Systems is delighted to announce that version 2.5 of Zicomi Mentor is released. With support for UML 2.0 and all thirteen UML diagrams more...
Zicomi Systems' Director speaks about the UML at Objects by Design - an informative interview more...
Partner Programme Zicom Systems is delighted to announce a new world wide partner programme, become a partner today. more...
OMG Member Zicom Systems is made a member of the OMG!
Interaction Occurrence
An interaction occurrence stands in the place of an interaction or portion of an interaction. An interaction occurrence is a diagrammatic device for reusing or copying the contents of an interaction to another diagram.
Explanation
An interaction occurrence is a fragment of an interaction that is reused or referenced in other locations. It is represented by a fragment rectangle with the word ref (referred to interaction) in the pentagon, and a name in the center of the rectangle. It is a device that can be used to refer to other interactions. It is typically used within other sequence diagrams or interaction overview diagrams. It can always be replaced by the sequence of interactions for which it acts as a surrogate and is best seen as a shorthand notation or referencing device.