of parts in the inventory; enhances part availability, reliability, maintainability, and economies of scale; and reduces part obsolescence occurrences.
• DMSMS. Each part selected for design use must be assessed for availability and evaluated based on its projected life cycle to mitigate the effects of DMSMS and minimize the impact on the system equipment production schedule. Parts selected and used in design should be tracked for DMSMS issues throughout the system or equipment life cycle to ensure availability of parts and to provide sufficient lead-time to develop the best solu- tions to mitigate parts issues in order to sustain fielded systems and reduce life-cycle costs. The Government-Industry Data Exchange Program (GIDEP) and many commercial part- tracking databases are available to provide information concerning when a part is discon- tinued by its manufacturer. SD-22, Diminishing Manufacturing Sources and Material
Shortages:A Guidebook of Best Practices for Implementing a Robust DMSMS Management Program, provides information on DMSMS and suggestions on how to address DMSMS issues.
• Anticounterfeiting. From a design perspective, anticounterfeiting has close connectivity to DMSMS. Obsolete or near-obsolete parts represent lucrative opportunities for counter- feiters; there will be demand and very limited sources of supply. The parts management tenet of supplier quality is also a factor for this design consideration. The likelihood of purchasing a counterfeit part is greatly reduced if the selected part is available from the original equipment manufacturer (OEM) or an OEM-franchised distributor.
• Environmental issues. Parts management considers the environment in which the parts are intended to operate. A part that is acceptable for an environmentally controlled ground site may not be acceptable for use in an aircraft that subjects the part to different environments and stresses. Part types used in land-based aircraft may not be suitable for use in ship-based aircraft that operate in severe marine environments and are more exposed to corrosion.
• Part and supplier quality. An important requirement for selecting parts is considering the source of supply and whether the parts are qualified for the application in which they are to be used. Part manufacturers and part distributors who provide the selected part must
be required to follow documented and established quality assurance policies and proce- dures. Those policies and procedures should include, for example, statistical process con- trol data and process controls on manufacturing, material, shipment, storage, notification concerning process changes, customer satisfaction, and quality measurement systems.
In view of the above, it is easy to understand why a disciplined part selection process in the design phase, as part of a formal PMP, increases the probability of using the most optimum parts in DoD weapons systems and equipment.
Process Efficiency and Parts Management
Process efficiency indicates the degree to which the logistics processes, infrastructure, and foot- print have been balanced to provide an affordable, agile, deployable, and operationally effective system. Thus, process efficiency encompasses manufacturing, operations, and product support.
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