NDLI: Data Quality : Assessing Input Data Uncertainty in Life Cycle Assessment Inventory Models

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Data Quality : Assessing Input Data Uncertainty in Life Cycle Assessment Inventory Models

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Data Quality : Assessing Input Data Uncertainty in Life Cycle Assessment Inventory Models

Content Provider	Springer Nature Link
Author	Kennedy, Dale J. Montgomery, Douglas C. Rollier, Dwayne A. Keats, J. Bert
Copyright Year	1997
Abstract	A methodology is presented to develop and analyze vectors of data quality attribute scores. Each data quality vector component represents the quality of the data element for a specific attribute (e.g., age of data). Several methods for aggregating the components of data quality vectors to derive one data quality indicator (DQI) that represents the total quality associated with the input data element are presented with illustrative examples. The methods are compared and it is proven that the measure of central tendency, or arithmetic average, of the data quality vector components as a percentage of the total quality range attainable is an equivalent measure for the aggregate DQI. In addition, the methodology is applied and compared to realworld LCA data pedigree matrices. Finally, a method for aggregating weighted data quality vector attributes is developed and an illustrative example is presented. This methodology provides LCA practitioners with an approach to increase the precision of input data uncertainty assessments by selecting any number of data quality attributes with which to score the LCA inventory model input data. The resultant vector of data quality attributes can then be analyzed to develop one aggregate DQI for each input data element for use in stochastic LCA modeling.
Starting Page	229
Ending Page	239
Page Count	11
File Format	PDF
ISSN	09483349
Journal	The International Journal of Life Cycle Assessment
Volume Number	2
Issue Number	4
e-ISSN	16147502
Language	English
Publisher	Ecomed
Publisher Date	1997-01-01
Publisher Place	Landsberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Data quality vector LCA input data quality LCI input data quality Life Cycle Assessment Life Cycle Inventory stochastic LCA modeling Environment Environmental Economics
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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