Abrasive finishing processes may be broadly described in terms of the abrasive tool, the machine tool, the work material, and the operational variables. As illustrated in Figure 3.6, these four input groups interact with each other, culminating in the output or abrasive finishing process results. Furthermore, each of these input groupings is multivariable, as described in Table 3.1. Indeed, there exist a few hundred variables for each abrasive finishing process which could cause one to believe that the abrasive finishing process is complex and can only be managed as an art. However, this need not be the case.