When troubleshooting, we can become fixated on the discipline that we are most familiarin the authors case, mechanical engineering. Investigating the failure of a machine may have a group of mechanical engineering specialists involved in the troubleshooting effort. When ones specialty is vibration analysis, the first thought for the failure could be a torsional or linear vibration problem. A stress analyst will focus on developing an analytical model to describe this failure. Conversely, the materials engineer will be investigating corrosion issues as the root cause. Likewise, the process and control engineers will be reviewing computer simulations and searching for possible abnormal operations.