Analysis of dependence of decision quality on data quality
Analysis of dependence of decision quality on data quality
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DOI：
10.1007/s10109-008-0059-3
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发表时间：
2008-02
影响因子：
2.9
通讯作者：
A. Frank
中科院分区：
文献类型：
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作者：
A. Frank
GIS专业人士似乎认为更好的数据会导致更好的决策，但如何决定更好的数据何时会导致更好的决策？确定数据质量对决策质量的影响的分析提供了是否投资于数据质量改进的标准。本文分析了数据质量以及它如何影响决策质量。以环境工程决策为例，介绍了数据质量对决策影响的一般评估方法。它表明，不确定性方面，这是鲜为人知的，例如，必要的安全级别，支配着许多决定的不确定性。努力收集更多或更好的数据以提高存储在地理信息系统中的数据的质量不会显著减少决策的不确定性。这一结果似乎与其他针对这一大类决策的研究结果一致。本文给出了一种评估收集更好的数据是否能改善决策的一般方法。
GIS professionals seem to assume that better data lead to better decisions, but how does one decide when better data lead to a better decision? An analysis to determine the effects of data quality on the quality of decisions provides criteria whether to invest in data quality improvement. This article analyzes data quality and how it influences the quality of a decision. It uses an example of an environmental engineering decision to demonstrate a general method to assess the influence of data quality on the decision. It shows that the uncertainty in aspects, which are poorly known, e.g., the necessary security levels, dominate the uncertainty of many decisions. Efforts to collect more or better data to improve the data quality of those stored in a GIS would not reduce uncertainty in the decision significantly. This result seems to be consistent with results from other studies for this very large class of decisions. The article gives a general method to assess whether collecting better data improves a decision or not.