Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.
An Object Node holds data that is input to or output from an Activity element. To set the type of an Object Node, click on it and press(to select an Instance Classifier). Object Nodes can be connected by Object Flow connectors; if the Object Nodes on each end of an Object Flow are typed, their types should be compatible.
An Action Pin is a specialized form of Object Node.