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input portAnchor input port input port
An input port of an element is used to collect data from another element. On the Scene it is displayed as prominent knob on an element with opened bubble.
output portAnchor output port output port
An output port of an element is used to provide data to another element. On the Scene it is displayed as prominent knob on an element with closed bubble.
slotAnchor slot slot
Each input or output port contains one or several slots. A A slot specifies the kind of data that can be passed through it (for example Sequence, Set of annotations, etc.)
The Scene is initially empty and you start with creating a workflow schema on it:
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