The Information Flow is a connector linking two Nodes in an Activity diagram. It represents information items or classifiers flowing between two elements.
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OMG UML Specification
The OMG UML specification (UML 2.1 Superstructure, p. 634) states:
揂n InformationFlow specifies that one or more information items circulates from its sources to its targets.?/span>
The OMG UML specification (UML 2.1 Superstructure, p. 635) also states:
揂n information flow is an abstraction of the communication of an information item from its sources to its targets. It is used to abstract the communication of information between entities of a system. Sources or targets of an information flow designate sets of objects that can send or receive the conveyed information item.?/span>