9.5 Using Object Flows to Describe the Flow of Items between Actions
Object flows are used to route input/output tokens that represent information and/or physical items between object nodes. Activity parameter nodes and pins are two examples of object nodes. Object flows can be used to route items from the parameters nodes on the boundary of an activity to/from the pins on its constituent actions, or to connect pins directly to other pins. In all cases, the direction of the object flow must be compatible with the direction of the object nodes at its ends (i.e., in or out), and the types of the object nodes on both ends of the object flow must be compatible with each other.
An object flow is shown as an arrow connecting the source of the flow ...
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