Safety Patterns — The Key to Formal Specification of Safety Requirements

Bitsch, Friedemann

doi:10.1007/3-540-45416-0_18

Cited by 38 publications

(21 citation statements)

References 13 publications

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“…They also argued for the inclusion of data-aware and enumerable properties specification support [24]. Finally, new specific property specification patterns have been proposed to cope with safety [25] and security concerns in safety-critical systems [26].…”

Section: Qualitative Specification Patternsmentioning

confidence: 99%

Aligning Qualitative, Real-Time, and Probabilistic Property Specification Patterns Using a Structured English Grammar

Autili

Grunske

Lumpe

et al. 2015

IIEEE Trans. Software Eng.

102

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Formal methods offer an effective means to assert the correctness of software systems through mathematical reasoning. However, the need to formulate system properties in a purely mathematical fashion can create pragmatic barriers to the application of these techniques. For this reason, Dwyer et al. invented property specification patterns which is a system of recurring solutions to deal with the temporal intricacies that would make the construction of reactive systems very hard otherwise. Today, property specification patterns provide general rules that help practitioners to qualify order and occurrence, to quantify time bounds, and to express probabilities of events. Nevertheless, a comprehensive framework combining qualitative, real-time, and probabilistic property specification patterns has remained elusive. The benefits of such a framework are twofold. First, it would remove the distinction between qualitative and quantitative aspects of events; and second, it would provide a structure to systematically discover new property specification patterns. In this paper, we report on such a framework and present a unified catalogue that combines all known plus 40 newly identified or extended patterns. We also offer a natural language front-end to map patterns to a temporal logic of choice. To demonstrate the virtue of this new framework, we applied it to a variety of industrial requirements, and use PSPWizard, a tool specifically developed to work with our unified pattern catalogue, to automatically render concrete instances of property specification patterns to formulae of an underlying temporal logic of choice.

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Section: Qualitative Specification Patternsmentioning

confidence: 99%

Aligning Qualitative, Real-Time, and Probabilistic Property Specification Patterns Using a Structured English Grammar

Autili

Grunske

Lumpe

et al. 2015

IIEEE Trans. Software Eng.

102

View full text Add to dashboard Cite

show abstract

“…However, just as it is impossible to determine whether a system is not emergent, it is also impossible to know if maximum composability has been extracted from an emergent but partially composable goal. In other words, it is impossible to determine if X is minimized in Equation (4).…”

Section: Emergence and Icpamentioning

confidence: 99%

System safety as an emergent property in composite systems

Black

Koopman

2009

2009 IEEE/IFIP International Conference on Dependable Systems &Amp; Networks

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“…The following diagram depicts H, S(x) P (x): Our extension is mostly conservative (the only novelty is the definition node which may be seen as a form a comment in an informal context) yet the coupling with verification process is very tight. Instead of mapping between safety cases and formal reasoning done in parallel [20], [4]. We use a safety case as a structured documentation that helps in collecting and discussing verification conditions.…”

Section: H P (X)mentioning

confidence: 99%

Formal Analysis of Railway Signalling Data

Iliasov

Romanovsky

2016

2016 IEEE 17th International Symposium on High Assurance Systems Engineering (HASE)

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This paper presents an approach to a tool-assisted analysis and verification of safety-critical interlocking and signalling data. We show how to combine multiple, nonhomogeneous sources of data and render such data as a collection of mathematical entities, namely sets, relations and functions. We then demonstrate how top-level railway safety concerns can be broken down, via a combination of informal structured argumentation and formal inference, into formal verification goals suitable for automatic verification tools.

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Safety Patterns — The Key to Formal Specification of Safety Requirements

Cited by 38 publications

References 13 publications

Aligning Qualitative, Real-Time, and Probabilistic Property Specification Patterns Using a Structured English Grammar

Aligning Qualitative, Real-Time, and Probabilistic Property Specification Patterns Using a Structured English Grammar

System safety as an emergent property in composite systems

Formal Analysis of Railway Signalling Data

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