Dr. Osman MSA group work is devoted to mathematical programming problems either with single objective or multiobjective,for example linear programming, nonlinear programming, integer programming,goal programming,and related topics such as dynamic programming, game theory.We are pioneers in working in the area of sensitivity analysis and parametric study for all the above mentioned models, we are contributers of what are called basic notions of parametric nonlinear programming problems and for other parametric models ,our work in this area is well known on the international level