3Open CASCADE S A S. Modeling data user's guide[EB/ OL]. [2013-01-02]. http://www, opencascade, org/.
4Open CASCADE S A S. Data exchange STEP import/ex- port user's guide[EB/OL]. [2013-01-02]. http://www. opencascade, org/.
5Kehmeier D J. Electrical/mechanical design integration: an introduction to IDF 4.0 and what it can do for you[EB/ OL]. [2013-01-02]. http://www, simplifiedsolutionsinc. com/images/idf_v40 overview, pdf.
6Open CASCADE S A S. Data exchange extended data exchange(XDE) user's guide[EB/OL]. [2013-01-02]. http ://www. opencascade, org/.