Formally Unifying Modeling and Design for Embedded Systems - A Personal View

Berry, Gérard

doi:10.1007/978-3-319-47169-3_11

Cited by 7 publications

(6 citation statements)

References 44 publications

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“…Moreover, an automaton introduces a set of scopes, one per state allowing to define variables that only exist when this state is active. 5 The semantics of state machines is defined by their translation to the dataflow kernel. This is done by capturing the structure of scopes with clocks based on an enumeration: one enumerated value per state and one enumerated type per state machine.…”

Section: B the Hierarchical State Machines Of Scadementioning

confidence: 99%

“…These foundations immediately raised interest in industries having to deal with safety-critical applications implemented in software or hardware, and in particular, those assessed by independent authorities and following certification standards [5]. This is the context in which SCADE 1 was initiated in the mid nineties, with the support of two companies, Airbus and Merlin Gerin, and in collaboration with the research laboratory VER-IMAG in Grenoble, and the software publisher VERILOG [6].…”

Section: Introductionmentioning

confidence: 99%

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Scade 6: From a Kahn Semantics to a Kahn Implementation for Multicore

Colaço

Pagano

Pasteur

et al. 2018

2018 Forum on Specification &Amp; Design Languages (FDL)

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SCADE is an environment for developing critical embedded software that is used for more than twenty years in various application domains like avionics, nuclear plants, transportation, automotive. It comes with a language and a code generator which complies with the highest safety standards like DO-178C, IEC 61508, EN 50128, IEC 60880 and ISO 26262. The language has been founded on the pioneering work by Caspi and Halbwachs on Lustre. In 2008, a major revision of the language and compiler, named 'Scade 6', was released. One of its novelty was a smooth integration of the traditional dataflow style of Lustre with control-structures inspired from those of Esterel and SyncCharts, with static/dynamic semantics and a compilation inspired from Lucid Synchrone. In particular, it relies on four dedicated type systems-typing, clock calculus, causality analysis, initialization analysis-and a compilation through source-to-source transformations into a minimal clocked data-flow language, based on a Kahn semantics, that is translated to imperative code. One ongoing work is the generation of code for multi-core architectures. Because of the intrinsic deterministic parallelism of Scade, we propose a solution that relies on annotations that specify what must be executed concurrently but do not change the semantics. The paper is a survey of past to ongoing work on Scade 6 language definition and implementation. Index Terms-synchronous languages, compiler, multi-core. 1 SCADE stands for Safety-Critical Development Environment 2 http://www.ansys.com/products/embedded-software/ansys-scade-suite 3 To distinguish between the environment and its underlying programming language, we write SCADE for the former and SCADE (with small capitals) for the later.

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Section: B the Hierarchical State Machines Of Scadementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Scade 6: From a Kahn Semantics to a Kahn Implementation for Multicore

Colaço

Pagano

Pasteur

et al. 2018

2018 Forum on Specification &Amp; Design Languages (FDL)

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“…Of the remaining nine papers, Berry [4] denes programming (As an activity, programming is quite easy to dene: one writes texts or graphics that are compiled into some machine language and executed by some computer. ), but not modelling (Modeling is not as clear-cut, because it deals with many more concepts and objects.…”

Section: Elaasar and Badreddin [15]mentioning

confidence: 99%

“…We present a brief description of Type Theory, and show that the proposal is consistent with most of the requirements for such an framework put forward during ISoLA 2016 by Broy et al We then discuss some possible objections, followed by some of the wider implications of this proposal. 4 We have used the British spelling throughout the document, except in literal quotes.…”

Section: Introductionmentioning

confidence: 99%

Type Theory as a Framework for Modelling and Programming

Ionescu

Jansson

Botta

2018

Leveraging Applications of Formal Methods, Verification and Validation. Modeling

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“…These tools or languages can be classified into five classes: 1) hardware modeling, 2) architecture modeling/system-level modeling/software modeling, 3) network modeling and simulation, 4) Logical theorem based provers, 5) generic modeling & simulation. Based on the surveys [52,[220][221][222][223] and our knowledge, part of popular tools/languages are exhibited in Table 3. …”

Section: Mde Based Vandv For Dependable Self-managing Cpsmentioning

confidence: 99%

A Comprehensive Technological Survey on Dependable Self-Managing CPS: The Decade of Researches on Correctness and Dependability

Zhou¹,

Hou²,

Zhang³

et al. 2017

Preprint

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Though Cyber Physical Systems (CPS) become very popular in last the decade, dependability of CPS is still a critical issue and related survey is rare. We try to spell out the jigsaw of technologies and figure out the technical trends of dependable self-managing CPS. This survey first recalls the motivation and the similar concepts. By analyzing four generic architectures, we summarize the common characteristics and related assurance technologies, and propose a more generic environment-in-loop processing flow of CPS and a formal interaction flow between physical space and cyber space. Further, the similarity between correctness and dependability is formally analyzed and the new five research questions of dependable self-managing CPS are presented. Then we review the critical technologies and related correctness verification & validation (V&V) methods, the architectures for dependable self-managing CPS. Further, the detail dependability management and V&V technologies are surveyed, which covers the areas of running-time fault management methods and whole life cycle V&V technologies, maintenance and available tool sets. For holistic CPS development, Modeling techniques and MDE (model driven engineering) based V&V methods are analyzed in detail. Then we complete the jigsaw of technologies and figure out the missing part. Further, we propose the technical challenges and the further direction. To our best knowledge, this is the first comprehensive survey on dependable self-managing CPS development and evaluation.

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Formally Unifying Modeling and Design for Embedded Systems - A Personal View

Cited by 7 publications

References 44 publications

Scade 6: From a Kahn Semantics to a Kahn Implementation for Multicore

Scade 6: From a Kahn Semantics to a Kahn Implementation for Multicore

Type Theory as a Framework for Modelling and Programming

A Comprehensive Technological Survey on Dependable Self-Managing CPS: The Decade of Researches on Correctness and Dependability

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