Nemouchi, Yakoub, Foster, Simon David orcid.org/0000-0002-9889-9514, Gleirscher, Mario orcid.org/0000-0002-9445-6863 et al. (1 more author) (2019) Isabelle/SACM: Computer-Assisted Assurance Cases with Integrated Formal Methods. In: Integrated Formal Methods:Proceedings of the 15th International Conference. LNCS . Springer , pp. 379-398.
Abstract
Assurance cases (ACs) are often required to certify critical systems. The use of integrated formal methods (FMs) in assurance can improve automation, increase confidence, and overcome errant reasoning. However, ACs can rarely be fully formalised, as the use of FMs is contingent on models that are validated by informal processes. Consequently, assurance techniques should support both formal and informal artifacts, with explicated inferential links between them. In this paper, we contribute a formal machine-checked interactive language for the computer-assisted construction of ACs called Isabelle/SACM. The framework guarantees well-formedness, consistency, and traceability of ACs, and allows a tight integration of formal and informal evidence of various provenance. To validate Isabelle/SACM, we present a novel formalisation of the Tokeneer benchmark, verify its security requirements, and form a mechanised AC that combines the resulting formal and informal artifacts.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Computer Science (York) |
Funding Information: | Funder Grant number EPSRC EP/S001190/1 |
Depositing User: | Pure (York) |
Date Deposited: | 02 Oct 2019 08:50 |
Last Modified: | 15 Mar 2025 00:14 |
Status: | Published online |
Publisher: | Springer |
Series Name: | LNCS |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:151498 |