制造来源减少和材料短缺（DMMS）是指由于生产中断而导致关键项目和原材料的制造商或供应商的损失或即将损失。DMMS对于国防部武器系统来说是一个越来越困难的问题，因为许多关键项目的制造寿命越来越短，而军事武器系统的生命周期却在不断增加。传统上，减轻DMMS影响的努力是被动的；也就是说，只有在看到这些影响时，才会处理这些影响。这种对DMMS解决方案的反应性方法导致决策者将注意力放在具有吸引力的短期收益的更快的解决方案路径上，以避免系统不可操作性，同时忽略长期- 术语解决方案路径，将导致通用解决方案系列或更大规模的解决方案，能够避免未来的DMMS问题。为了以较低的总体成本解决DMMS问题，DMMS解决方案必须从被动转向主动。在系统设计和开发过程中，建立了DMMS有效主动管理的基础。如果在设计系统时考虑到DMMS的必然性，则可以在适当的早期启动具有大规模解决方案的早期解决方案路径，以实现智能选择，而不会面临系统不可操作的紧迫威胁。通过使用行业最重要成员使用的DMMS管理实践标准集，可以更好地预测此类通用大规模解决方案和DMMS威胁最普遍的地方共识。 此类标准的创建、传播和广泛使用可大大有助于DMMS的主动管理。本指南提供了一套管理实践，可供原始设备制造商（OEM）在设计和开发军用电子系统期间使用，以减轻DMMS的影响。这种做法将有助于国防部武器系统的未来建设者和修改者主动设计，以解决未来部件过时的问题。

Diminishing Manufacturing Sources and Material Shortages (DMSMS) is the loss or impending loss of manufacturers or suppliers of critical items and raw materials due to production discontinuance. DMSMS is an increasingly difficult problem for DoD weapon systems because the manufacturing lives of many critical items get shorter while the life cycles of military weapon systems keep increasing. Traditionally, efforts to mitigate the effects of DMSMS have been reactive; that is, the effects are addressed only when they are seen. This reactive approach to DMSMS solutions leads to decisions that put a premium on faster solution paths with attractive short-term gains in order to avoid system inoperability, while ignoring the long-term solution paths that would lead to generic families of solutions or larger-scale solutions with the capability of avoiding future DMSMS issues. In order to solve DMSMS issues with lower overall cost, DMSMS solutions must change from reactive to proactive. The building blocks of effective proactive management of DMSMS are established during the design and development of systems. If systems are designed with the inevitability of DMSMS in mind, early solution paths with largescale solutions can be started at an appropriately early time to enable intelligent choices without the imminent threat of system inoperability. Such generic large-scale solutions and a consensus on where DMSMS threats are most prevalent can be better forecasted by the use of a standard set of DMSMS management practices used by the foremost members of industry. The creation, dissemination, and widespread use of such a standard can greatly help the cause of proactive management of DMSMS.This guideline presents a set of management practices that can be used by original equipment manufacturers (OEMs) during the design and development of military electronic systems to mitigate the effects of DMSMS. Such practices will help future builders and modifiers of DoD weapon systems to design proactively to address the issues of future component obsolescence.