In GRA, after calculating the grade. In the confirmation test table, the optimal setting parameters values, again a grey relation grade has been calculated. How this grade is calculated what will be the inputs for that one.
1. Optimization of Process Parameters on MRR and Overcut in Electrochemical Micro Machining on Metal Matrix Composites Using Grey Relational Analysis, International Journal of Engineering and Technology, vol. 6, no. 2, pp. 519-529, 2014.