Deriving Safety Cases from Machine-Generated Proofs


Basir, Nurlida, Denney, Ewen and Fischer, Bernd (2009) Deriving Safety Cases from Machine-Generated Proofs At Workshop on Proof-Carrying Code and Software Certification (PCC'09), United States.

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Description/Abstract

Proofs provide detailed justification for the validity of claims and are widely used in formal software development methods. However, they are often complex and difficult to understand, because they use machine-oriented formalisms; they may also be based on assumptions that are not justified. This causes concerns about the trustworthiness of using formal proofs as arguments in safety-critical applications. Here, we present an approach to develop safety cases that correspond to formal proofs found by automated theorem provers and reveal the underlying argumentation structure and top-level assumptions. We concentrate on natural deduction proofs and show how to construct the safety cases by covering the proof tree with corresponding safety case fragments.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: August 15, 2009
Venue - Dates: Workshop on Proof-Carrying Code and Software Certification (PCC'09), United States, 2009-08-15
Organisations: Electronic & Software Systems
ePrint ID: 271267
Date :
Date Event
15 August 2009Published
Date Deposited: 14 Jun 2010 17:13
Last Modified: 17 Apr 2017 18:18
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/271267

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