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Toward a Theory of Assurance Case Confidence

• Technical Report
In this report, the authors present a framework for thinking about confidence in assurance case arguments.
Publisher

Software Engineering Institute

CMU/SEI Report Number
CMU/SEI-2012-TR-002
DOI (Digital Object Identifier)
10.1184/R1/6585362.v1

Abstract

Assurance cases provide an argument and evidence explaining why a claim about some system property holds. This report outlines a framework for justifying confidence in the truth of such an assurance case claim. The framework is based on the notion of eliminative induction—the principle first put forward by Francis Bacon that confidence in the truth of a hypothesis or claim increases as reasons for doubting its truth are identified and eliminated. Possible reasons for doubting the truth of a claim arise from analyzing an assurance case using defeasible reasoning concepts. Finally, the notion of Baconian probability provides a measure of confidence based on how many defeaters have been identified and eliminated.

Cite This Technical Report

Goodenough, J., Weinstock, C., & Klein, A. (2012, September 1). Toward a Theory of Assurance Case Confidence. (Technical Report CMU/SEI-2012-TR-002). Retrieved November 23, 2024, from https://doi.org/10.1184/R1/6585362.v1.

@techreport{goodenough_2012,
author={Goodenough, John and Weinstock, Charles and Klein, Ari},
title={Toward a Theory of Assurance Case Confidence},
month={{Sep},
year={{2012},
number={{CMU/SEI-2012-TR-002},
howpublished={Carnegie Mellon University, Software Engineering Institute's Digital Library},
url={https://doi.org/10.1184/R1/6585362.v1},
note={Accessed: 2024-Nov-23}
}

Goodenough, John, Charles Weinstock, and Ari Klein. "Toward a Theory of Assurance Case Confidence." (CMU/SEI-2012-TR-002). Carnegie Mellon University, Software Engineering Institute's Digital Library. Software Engineering Institute, September 1, 2012. https://doi.org/10.1184/R1/6585362.v1.

J. Goodenough, C. Weinstock, and A. Klein, "Toward a Theory of Assurance Case Confidence," Carnegie Mellon University, Software Engineering Institute's Digital Library. Software Engineering Institute, Technical Report CMU/SEI-2012-TR-002, 1-Sep-2012 [Online]. Available: https://doi.org/10.1184/R1/6585362.v1. [Accessed: 23-Nov-2024].

Goodenough, John, Charles Weinstock, and Ari Klein. "Toward a Theory of Assurance Case Confidence." (Technical Report CMU/SEI-2012-TR-002). Carnegie Mellon University, Software Engineering Institute's Digital Library, Software Engineering Institute, 1 Sep. 2012. https://doi.org/10.1184/R1/6585362.v1. Accessed 23 Nov. 2024.

Goodenough, John; Weinstock, Charles; & Klein, Ari. Toward a Theory of Assurance Case Confidence. CMU/SEI-2012-TR-002. Software Engineering Institute. 2012. https://doi.org/10.1184/R1/6585362.v1