Structural discipline supports CIS/2 translation for its Structural steel member information. CIS/2 is a data exchange file format for structural steel project information, and has been implemented by steel design, analysis, engineering, fabrication, and construction software packages. The American Institute of Steel Construction has adopted CIS/2 as their standard format for electronic data exchange. CIS/2 files exported by analysis or design applications are typically imported into detailing programs to detail connections. The basis for CIS/2 files is the STEP file extension.