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TRANSCRIPT
A Cost-Effective Approach to Implementing Reliability and Maintainability Requirements
Sheila A. Kavanaugh
The MITRE Corporation* Reliability and Maintainability Center
Mail Stop H113 202 Burlington Road
Bedford, MA 01730-1420
Phone: (617) 271-8146
E-mail: [email protected]
Abstract
The military system acquisition process is an expensive one. In 1994, Secretary of Defense, William Perry, set in motion a series of initiatives designed to reduce the cost of Department of Defense (DoD) acquisitions. In response to Dr. Perry’s initiatives, the military services and agencies are developing methods of implementation to improve business processes, decrease costs, and increase customer satisfaction. This will, in turn, have a major impact on the way industry does its business. Areas impacted by these initiatives include reliability and maintainability (R&M).
A key goal of the initiative is the elimination of military-unique standards in favor of the development of universally accepted standards. Obsolete military standards, such as MIL-STD-785 and MIL-STD-470 for R&M program implementation, are being eliminated. The development and use of performance-based standards and specifications, and the use of commercial standards and specifications are underway. Various professional societies and industry associations are developing alternatives to military R&M standards and specifications. For example, the Society of Automotive Engineers (SAE) is developing a new failure modes, effects, and criticality analysis (FMECA) procedure to replace MIL-STD- 1629.
This talk will provide an overview of various government agencies’ R&M standards reform-related activities and attempt to address impacts on industry. We have concentrated our initial efforts on evaluating international R&M standards to determine their viability as alternatives to military R&M standards. Early on it was determined that membership on the committees of various professional societies and non-government standard development organizations was imperative to the success of the R&M standards reform effort, since it is these committees that are developing and maintaining the commercial standards that will be used in future DoD acquisitions. We will report on the activities of these committees as they attempt to develop streamlined R&M standards that are cheaper for all to use when implementing R&M requirements.
*The views, opinions, and/or findings contained in this presentation are those of the author, and should not be construed as the official positions, policies, andor decisions of the MITRE Corporation or its Govemment sponsors.
0 Memorandum dated 29 June 1994 0 Objective
- Maximize use of commercial practices - Increase access to commercial-off-the-shelf (COTS)
- Use performance and commercial specifications and products
standards
Implementation Strategy
0 Challenge how requirements were defined in the past - Defense budgets are shrinking - Defense-unique industrial base is now unsupportable
- Abandon or restructure “old ways” based on declining resources and changing environments and capabilities
* Reevaluate fundamental attitudes and assumptions
0 MilSpec reform is not just a paper exercise - Goals
reengineer fundamental processes and practices eliminate non-value added documentation
- Goal is not to simply re-label MilSpecs as commercial documents
Defense Standards Im rovement Council
Q Reviews and dispositions specifications and standards - Challenges acquisition processes and practices
reflected in documents 0 Canceled over 1600 military and federal specifications and
0 Commercial and performance documents now comprise standards
over 26 percent of documents in the DoD Index of Specifications and Standards
Status of Reliability and Maintaina Military Handbooks and Standards
0 MIL-HDBK-217 (Reliability Predictions) - Retain as a handbook; however, for guidance only - Cancel when IEEE or other organization develops a
Q MIL-STD-470 and -471 (Maintainability ProgramResting) - Canceled and redesignated as handbooks (June 95) - Both to be consolidated into a new handbook (June 96)
- Cancel after incorporation of appropriate sections into
- Revised MIL-HDBK-781 to be published by March 96 - Partnership in RMS Standards tasked to locate or
address development of suitable industry standard
suitable non-government standard (NGS) replacement
0 MIL-STD-781 (Reliability Testing)
MIL-HDBK-781
MIL-STD-785 (Reliability Program) - Cancel after publication of a suitable N G S replacement - IEEE and SAE developing industry standard(s)
- Cancel after publication of a suitable N G S replacement - SAE requested to publish an industry standard by
0 MIL-STD-1629 (FMECA)
June 96 0 MIL-STD-1635 (Reliability Growth Testing)
- Proposed for cancellation
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Status of Reliability and Maintainability Military Handbooks and Standards (concluded)
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MITRE Efforts
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0 Generated list of potential alternatives to R&M military
0 Evaluated alternatives to military standards handbooks and standards
- IEC Standards on maintainability 0 Information similar to military standards
Approach is one of guidance as opposed to
0 Realized need to become members of various N G S direction
development committees - Each committee typically responsible for development
of commercial replacement of one particular military standard
- To effect change, one must belong
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MITRE Involvements
0 SAE G-11 Subcommittee on Failure Modes, Effects, and
0 RAC’s consolidation of MIL-STD-470 and -471 into a
0 Partnership in RMS Standards
Criticality Analysis (FMECA)
military handbook
- Consortium of industry, government, and academia
- Help redefine standardization process - Complement and leverage existing resources of
professional societies and industry associations
representatives
MITRE
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Standards Development Flow
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(OPTIONAL)
EmmmnoNAL STANDARD
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As appeared in Pameiship in RMS Standards, Vol. 1, No. 1, June 1995
Reducing Costs
0 Using COTS products - accelerates acquisition - costs less than MilSpec purchases
0 Reducing number of military unique specifications and
0 Streamlining formal documentation requirements 0 Single process initiative
standards
- allow industry to standardize process requirements on
- integration of defense and commercial manufacturing
- faster delivery - better quality
a facility basis, rather than contract by contract
processes and facilities
MITRE
Future Efforts
0 Support, participate, and contribute to committee activities 0 Maintain awareness of changes to DoD actions affecting
0 Subscribe to and review newsletters and journals 0 Continue evaluation of alternatives to military standards 0 Gain memberships on other R&M related committees
current efforts
MITRE
0 Defense Standardization Program Home Page - http://www.acq.osd.mil/es/std/stdhome.html - or call Sharon Strickland - (703) 681-7622
- http://iitri.com/RAC 0 Reliability Analysis Center Home Page
0 Partnership in RMS Standards, Vol. 1, No. 1, June 1995
Raliablllry and Mdnmhblllty MITRE