-
1 object flow
"In an activity diagram, a dashed arrow that indicates that an object is input or output by an action. An object flow arrow connects an object flow state either to a control flow arrow or to an action state." -
2 object flow state
"In an activity diagram, a state that defines an object flow between actions. An object flow state signifies the availability of an instance of a classifier in a given state, usually as the result of an operation."