This tool is based on a graphic language called XYZ/CFC which is the graph-ic representation of a temporal logic language XYZ/E．By means of this tool，a XYZ/E program of unstructured form can be transformed into structured form．XYZ/E iS suitable to play the role of an intermediate language．As the comequence，this tool can also be used to transform a program of any conventional language into its structured form．