Folowing is a summary of the reasons as to why manufacturing plants fail to achieve the desired level of RAM (Reliability, Availability and Maintainability) requirement:
• Poorly defined or unrealistically high RAM requirements.
* Lack of priority on achieving Reliability & Maintainability
* Too little engineering for RAM
- Failure to design-in reliability early in the development process
- Inadequate lower level testing at component or subcomponent level
- Reliance on prediction instead of conducting engineering design analysis.
- Failure to perform engineering analysis of commercial off the shelf equipment
- Lack of reliability improvement incentives
- Inadequate planning for reliability
- Ineffective implementation of Reliability Tasks in improving reliability
- Failure to give adequate priority to the importance of integrated Diagnositics (ID) design — influence on overall maintainability atributes, mission readiness, maintenance concept design and associated LCC support concepts.
- Unanticipated complex software integration issues affecting all aspects of RAM
- Lack of adequate Integrated Diagnostic (ID) maturation efforts during system integration.
- Failure to anticipate deisgn integration problems where incremental design approaches influence RAM performance.