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Conference Papers Year : 2018

Formalise to automate: deployment of a safe and cost-efficient process for avionics software

David Delmas
Abdellatif Atki
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Thomas Marie
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Abstract

For over a decade, Airbus have been introducing formal techniques into the verification processes of some of their avionics software products, to cope with the steady increase of the size and complexity of related avionics systems. These techniques have come of age for large-scale industrial deployment. All design and verification processes are currently being revised to take maximum advantage from them, i.e. improve industrial efficiency while maintaining the safety and reliability of avionics systems. To achieve this goal, all human-engineered design artefacts are being formalised using languages with well-defined syntaxes and semantics, in order to allow for the automatic generation of all subsequent, computable design or verification artefacts, and the preparation of the input data for non computable activities. To this aim, several domain-specific languages and related compilers have been developed internally, which cover all design activities, and bridge the gaps to integrate external tools into the overall development processes, e.g. sound, semantics-based, static analysis tools. For instance, the formalisation of detailed designs in the form of function contracts expressed in a first-order logic-based language allows for a hybrid approach to unit verification. Designs may be compiled down to ACSL [5] contracts, allowing for program proof with Frama-C [22], or they may be compiled down to test contracts, allowing for semi-automatic unit tests.
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Dates and versions

hal-01708332 , version 1 (15-02-2018)

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  • HAL Id : hal-01708332 , version 1

Cite

Abderrahmane Brahmi, David Delmas, Mohamed Habib Essoussi, Famantanantsoa Randimbivololona, Abdellatif Atki, et al.. Formalise to automate: deployment of a safe and cost-efficient process for avionics software. 9th European Congress on Embedded Real Time Software and Systems (ERTS 2018), Jan 2018, Toulouse, France. ⟨hal-01708332⟩

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