Facilitating construction of safety cases from formal models in Event-B

Prokhorova, Yuliya; Laibinis, Linas; Troubitsynå, Elena

doi:10.1016/j.infsof.2015.01.001

Cited by 21 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Inspired by [1,34], we want to investigate the benefits of a further integration of Isabelle/Isar with the argument structure in Isabelle/SACM. Particularly, Basir [1] discusses how natural deduction program proofs (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…This integration of dynamic and temporal logic supports the objective underlying many ACs, that is, to integrate evidence from different provenance. We develop a formal notion of FMAC extension, which employs both A/G reasoning and data refinement [40], which allows us to elaborate models in a style similar to Event-B refinement [34].…”

Section: Formal Model-based Assurance Casesmentioning

confidence: 99%

“…Prokhorova et al [34] propose the construction of formal model-based safety cases based on a classification of safety requirements using Event-B. The authors discuss argument patterns for all classes of requirements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evolution of Formal Model-Based Assurance Cases for Autonomous Robots

Gleirscher

Foster

Nemouchi

2019

Software Engineering and Formal Methods

View full text Add to dashboard Cite

An assurance case should carry sufficient evidence for a compelling argument that a system fulfils its guarantees under specific environmental assumptions. Assurance cases are often subject of maintenance, evolution, and reuse. In this paper, we demonstrate how evidence of an assurance case can be formalised, and how an assurance case can be refined using this formalisation to increase argument confidence and to react to changing operational needs. Moreover, we propose two argument patterns for construction and extension and we implement these patterns using the generic proof assistant Isabelle. We illustrate our approach for an autonomous mobile ground robot. Finally, we relate our approach to international standards (e.g. DO-178C, ISO 26262) recommending the delivery and maintenance of assurance cases.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Formal Model-based Assurance Casesmentioning

confidence: 99%

See 1 more Smart Citation

Evolution of Formal Model-Based Assurance Cases for Autonomous Robots

Gleirscher

Foster

Nemouchi

2019

Software Engineering and Formal Methods

View full text Add to dashboard Cite

show abstract

“…The topic of combining graphical domain-specific notation with formal Event-B models has also been explored in a number of works focusing on modelling dependable systems [18,19,23,24,29,30]. The overall goal pursued in these work were to facilitate construction of a formal model by relying on a suitable graphical notation.…”

Section: Discussionmentioning

confidence: 99%

Towards Integrated Modelling of Dynamic Access Control with UML and Event-B

Vistbakka

Troubitsynå

2018

Electron. Proc. Theor. Comput. Sci.

Self Cite

View full text Add to dashboard Cite

Role-Based Access Control (RBAC) is a popular authorization model used to manage data-access constraints in a wide range of systems. RBAC usually defines the static view on the access rights. However, to ensure dependability of a system, it is often necessary to model and verify statedependent access rights. Such a modelling allows us to explicitly define the dependencies between the system states and permissions to access and modify certain data. In this paper, we present a work-in-progress on combining graphical and formal modelling to specify and verify dynamic access control. The approach is illustrated by a case study -a reporting management system.

show abstract

“…In the next section, we will illustrate such safety case construction by a case study. More details of the proposed arguments patterns can be found in [14].…”

Section: Fig 4 Generic Argument Patternmentioning

confidence: 99%

From Requirements Engineering to Safety Assurance: Refinement Approach

Laibinis

Troubitsynå

Prokhorova

et al. 2015

Dependable Software Engineering: Theories, Tools, and Applications

Self Cite

View full text Add to dashboard Cite

Formal modelling and verification are widely used in the development of safety-critical systems. They aim at providing a mathematically-grounded argument about system safety. In particular, this argument can facilitate construction of a safety case -a structured safety assurance document required for certification of safety-critical systems. However, currently there is no adequate support for using the artefacts created during formal modelling in safety case development. In this paper, we present an approach and the corresponding tool support that tackles this problem in the Event-B modelling framework. Our approach establishes a link between safety requirements, Event-B models and corresponding fragments of a safety case. The supporting automated tool ensures traceability between requirements, models and safety cases. Machine M Variables v Invariants I Events Init evt1 • • • evtN −→

show abstract

Facilitating construction of safety cases from formal models in Event-B

Cited by 21 publications

References 15 publications

Evolution of Formal Model-Based Assurance Cases for Autonomous Robots

Evolution of Formal Model-Based Assurance Cases for Autonomous Robots

Towards Integrated Modelling of Dynamic Access Control with UML and Event-B

From Requirements Engineering to Safety Assurance: Refinement Approach

Contact Info

Product

Resources

About