The lower portion consists of two table-like graphical widgets (Pages and Outputs), which allow you to define input and output parameters.
下部包含了两个表状的图形部件(Pages和Out puts)，它们允许您定义输入和输出参数。
2
You can map operations andinputandoutput messages between a set of interfaces through a drag-and-drop, graphical mechanism using the interface mapping editor.