Abstract
Experiments are a critical part of the model validation process, and the credibility of the resulting simulations are themselves dependent on the credibility of the experiments. The impact of experimental credibility on model validation occurs at several points through the model validation and uncertainty quantification (MVUQ) process. Many aspects of experiments involved in the development and verification and validation (V&V) of computational simulations will impact the overall simulation credibility. In this document, we define experimental credibility in the context of model validation and decision making. We summarize possible elements for evaluating experimental credibility, sometimes drawing from existing and preliminary frameworks developed for evaluation of computational simulation credibility. The proposed framework is an expert elicitation tool for planning, assessing, and communicating the completeness and correctness of an experiment (“test”) in the context of its intended use—validation. The goals of the assessment are (1) to encourage early communication and planning between the experimentalist, computational analyst, and customer, and (2) the communication of experimental credibility. This assessment tool could also be used to decide between potential existing data sets to be used for validation. The evidence and story of experimental credibility will support the communication of overall simulation credibility.
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Acknowledgements
The authors thank Martin Pilch, PhD, and Angel Urbina, PhD, for valuable conversations and feedback. This project was funded by the Advance Simulation and Computing (ASC) Program of the Department of Energy’s National Nuclear Security Administration and the Weapons Systems Engineering Assessment Technology (WSEAT) Program at Sandia National Laboratories.
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. SAND2017-11505 C.
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© 2019 The Society for Experimental Mechanics, Inc.
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Kieweg, S.L., Witkowski, W.R. (2019). Experimental Credibility and Its Role in Model Validation and Decision Making. In: Barthorpe, R. (eds) Model Validation and Uncertainty Quantification, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-74793-4_5
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DOI: https://doi.org/10.1007/978-3-319-74793-4_5
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