hi there exis a relationship between dimensional precision and surface roughness as show in the attach file. however, i can't find any other relationship among the others evaluation items. Some example of evaluation items for precision machine are as below: 1)dimensional precision 2)angular precision 3)form precision 4)surface roughenss 5)kinematic precision 6)surface layer alterations 7)etc.... is there relationship between these evaluation items??if yes,wat is the relationship,and where can i look for it?? any website that discuss on it??