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Uncertainty in Cost Performance as a Function of the Cusp Catastrophe in the NASA Program Performance Management System

机译:成本绩效的不确定性与NASA计划绩效管理系统中尖锐灾难的关系

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摘要

Cost performance by NASA programs can generate two stable states within the organization system used for program performance management. These states could be stable individually or show multistability with cusp-like behavior. To test this, we constructed a cusp catastrophe model in a multilevel modeling (HLM) procedure on the cost components of an eleven-month period of one NASA program. HLM was used for its ability to estimate random effects as replacements for unknown control parameters. The cusp catastrophe model was a good description of the data and there was some evidence that the overall budget size functioned as a control parameter. Results are presented in terms of three different forms of uncertainty: attractor strength, unistability or multistability, and control parameters. Recommendations and future directions are focused towards understanding the cause of uncertainty in complex management systems.
机译:NASA计划的成本绩效可以在用于计划绩效管理的组织系统内生成两个稳定状态。这些状态可以单独保持稳定,也可以表现出具有尖峰状行为的多重稳定性。为了验证这一点,我们在一个多层次建模(HLM)程序中,根据一项NASA计划的11个月期间的成本构成,构建了一个突如其来的灾难模型。 HLM因其能够估计随机效应作为未知控制参数的替代品而被使用。尖峰突变模型很好地描述了数据,并且有证据表明,总预算规模充当了控制参数。结果以不确定性的三种不同形式表示:吸引子强度,不稳定性或多重稳定性以及控制参数。建议和未来的方向集中于理解复杂管理系统中不确定性的原因。

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