Part 1.Researches on Open Source Software Scilab Challenges in Integrating Modelica in the Hybrid System Formlism Scicos Evaluating Interpolation Kerels for InSAR Using Scilab Scilab Grid Toolkit with Open Source ProActive Some Practial Experiences with Scilab/Scicos and RTAI-Lab at the SUPSI Laboratory Targeting the Scicos Code Generator HDL Model Example The Present and Future of Scilab's Engineering Application Tools for Building Scilab Toolboxes,Present and Future Part 2.Design and Development of Toolbox for Scilab A Complex Network Toolbx based on Scilab A Testing Tool for Character Recongnition Based On BP Network Using JAVASCI Interface An ITS Dynamics Model Simulator Based on Scilab Audio Editor Toolbox for Scilab-Scilab Melody …… Part 3.Engineering Applications Based on Scilab