be attained depends on several determining factors. Since not all machines have the same level of reliability and capability to execute predictable finished results within certain tolerances, nor all manufacturing processes achieve the same range of exactness, the machine shop is then limited to its own dependability in delivering the desire outcomes. Subsequently, subject to the rigor declared by the customer, the machine shop may be required to undergo a verification and validation even prior to the issuance and acknowledgment of an order. The machine shop may have a specific area established for measuring and inspecting the parts in order to confirm compliance, while other shops only rely on the inspections performed by the machinists and fabricators. For instance, in some shops, a granite, calibrated surface plate may be shared by different departments, and in other shops, the lathes, the mills, etc, may have their own, or may not have one at all. Calibration The standards followed, the industry served, quality control, and mainly the type of practices in the machine shop, will denote the utilization of precision inspection instruments, and the accuracy of metrology employed. This means that not all machine shops implement a periodic interval for calibrating measuring devices. Not all machine shops have the same type of measuring instruments, though it is common to find micrometers, Vernier calipers, granite surface plates, among others. The frequency and precision for calibrating metrology instruments may vary and it may require hiring the services of a specialized third-party. Also, in some instances, maintaining all instruments existent in the shop calibrated may be a necessary requirement to not fall out of compliance. Layout The location and orientation of the machines are important. Preferably, some prior thought has been given in the positioning of the equipment; likely not as meticulously as in a plant layout study, the closeness of the machines, the types of machines, were the raw material are received and kept, as well as other factors, including ventilation, are taken in account to establish the initial layout of the machine shop. A routing diagram and daily operations may dictate the need to rearrange. Profitability is commonly a driving consideration in regards to maximizing production, and thus aligning the machines in an effective manner; however, other critical factors must be considered, such as the preventive maintenance of the equipment and safety in the workplace. For instance, allowing room for a technician to