首页> 外文会议>18th Annual International Symposium of the International Council on Systems Engineering(INCOSE 2008) >Do It Right, Do It Early; Do It Early, Do It Right: Reshaping the DoD SE Investment Paradigm
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Do It Right, Do It Early; Do It Early, Do It Right: Reshaping the DoD SE Investment Paradigm

机译:做对,尽早;尽早做对,正确做:重塑国防部SE投资范式

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The first standard deviation of a normal distribution curve overlaid on the Department of Defense (DoD) acquisition life cycle "wall chart" generally aligns with Milestones (MS) / Key Decision Points (KDP) B and C, which bound the System Development and Demonstration (SDD) phase. Taking this overlay to represent Systems Engineering (SE) effort supports the contention that, historically, the Services and their industry partners have done reasonably well in the practice and management of large amounts of post-contract-award SE. Much of this effort focuses on the fundamental activities of requirements decomposition and allocation needed for detail design to proceed.rnAnalyses of DoD cost and schedule overruns have long pointed to optimistic technology maturation expectations and inadequately defined requirements as causal factors. It is almost axiomatic that process output quality directly reflects the suitability of input attributes. We suggest overlaying the near-exponential "cost of change" curve on the above construct to support the case that early SE investment, focused on crafting and refining requirements, minimizes "churn" and rework in SDD. The objective is to have realistic, achievable requirements and technology paths at program launch, reducing the risk of breaching cost and schedule baselines.
机译:叠加在国防部(DoD)采购生命周期“挂图”上的正态分布曲线的第一个标准偏差通常与里程碑(MS)/关键决策点(KDP)B和C对齐,这限制了系统开发和演示(SDD)阶段。以此重叠表示系统工程(SE)的努力,可以支持以下论点:从历史上看,服务及其行业合作伙伴在实践和管理大量合同授予后的SE方面做得相当好。这些工作大部分集中在进行详细设计所需的需求分解和分配的基本活动上。对国防部成本和进度超支的分析长期以来一直将乐观的技术成熟预期和未充分定义的需求作为因果因素。毫无疑问,过程输出质量直接反映了输入属性的适用性。我们建议在上述结构上覆盖接近指数的“变更成本”曲线,以支持早期的SE投资(专注于工艺和精炼需求)最大程度地减少SDD中的“流失”和返工的情况。目的是在程序启动时具有现实,可实现的需求和技术路线,以减少违反成本和进度基准的风险。

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