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ReSA: An Ontology-based Requirement Specification Language Tailored to Automotive Systems
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-5626-0587
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0003-2870-2680
Volvo Group Trucks Technology, Sweden.
2015 (English)In: 2015 10th IEEE International Symposium on Industrial Embedded Systems (SIES), 2015, 1-10 p.Conference paper, Published paper (Refereed)
Abstract [en]

Automotive systems are developed using multi-leveled architectural abstractions in an attempt to manage the increasing complexity and criticality of automotive functions. Consequently, well-structured and unambiguously specified requirements are needed on all levels of abstraction, in order to enable early detection of possible design errors. However, automotive industry often relies on requirements specified in ambiguous natural language, sometimes in large and incomprehensible documents. Semi-formal requirements specification approaches (e.g., requirement boilerplates, pattern-based specifications, etc.) aim to reduce requirements ambiguity, without altering their readability and expressiveness. Nevertheless, such approaches do not offer support for specifying requirements in terms of multileveled architectural concepts, nor do they provide means for early-stage rigorous analysis of the specified requirements. In this paper, we propose a language, called ReSA, which allows requirements specification at various levels of abstraction, modeled in the architectural language of EAST-ADL. ReSA uses an automotive systems’ ontology that offers typing and syntactic axioms for the specification. Besides enforcing structure and more rigor in specifying requirements, our approach enables checking refinement as well as consistency of requirements, by proving ordinary boolean implications. To illustrate ReSA’s applicability, we show how to specify some requirements of the Adjustable Speed Limiter, which is a complex, safety-critical Volvo Trucks user function.

Place, publisher, year, edition, pages
2015. 1-10 p.
Keyword [en]
automotive systems, requirements specification, boilerplates, ontology
National Category
Engineering and Technology Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-29240DOI: 10.1109/SIES.2015.7185035ISI: 000380569800001Scopus ID: 2-s2.0-84959476620ISBN: 978-1-4673-7711-9 (print)OAI: oai:DiVA.org:mdh-29240DiVA: diva2:859227
Conference
10th IEEE International Symposium on Industrial Embedded Systems SIES'15, 8-10 Jun 2015, Siegen, Germany
Projects
VeriSpec - Structured Specification and Automated Verification for Automotive Functional Safety
Available from: 2015-10-06 Created: 2015-09-29 Last updated: 2017-05-24Bibliographically approved
In thesis
1. Ontology-based Analysis and Scalable Model Checking of Embedded Systems Models
Open this publication in new window or tab >>Ontology-based Analysis and Scalable Model Checking of Embedded Systems Models
2017 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Currently, there is lack of effective and scalable methods to specify and ana-lyze requirements specifications, and verify the behavioral models of embed-ded systems. Most embedded systems requirements are expressed in naturallanguage which is flexible and intuitive but frequently ambiguous, vague andincomprehensive. Besides to natural language, template-based requirementsspecification methods are used to specify requirements specifications (esp. insafety-critical applications), which reduce ambiguity and improves the com-prehensibility of the specifications. However, the template-based method areusually rigid due to the fixed structures of the templates. They also lack meta-models for extensibility, and template selection is challenging.In this thesis, we proposed a domain specific language for embedded sys-tems, called ReSA, which is constrained natural language but flexible enoughto allow engineers to use different constructs to specify requirements. Thelanguage has formal semantics in proportional logic and description logic thatenables non-trivial and rigorous analysis of requirements specification, e.g.,consistency checking, completeness of specifications, etc.Moreover, we propose a scalable formal verification of Simulink models,whichisusedtodescribethebehaviorofsystemsthroughcommunicatingfunc-tional blocks. In industry, Simulink is the de facto modeling and analysis en-vironment of embedded systems. It is also used to generate code automati-cally from special Simulink models for various hardware platforms. However,Simulink lacks formal approach to verify large and hybrid Simulink models.Therefore, we also propose a formal verification of Simulink models, repre-sented as stochastic timed automata, using statistical model checking, whichhas proven to scale for industrial applications.We validate our approaches on industrial use cases from the automotiveindustry. These includes Adjustable Speed Limiter (ASL) and Brake-By-Wire(BBW) systems from Volvo Group Trucks Technology, both safety-critical.

Place, publisher, year, edition, pages
Västerås: Mälardalen University, 2017. 200 p.
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 262
Keyword
requirements specification, embedded systems, ontology, formal methods, simulink, sat, domain specific language, requirements boilerplates
National Category
Embedded Systems
Research subject
Computer Science
Identifiers
urn:nbn:se:mdh:diva-35386 (URN)978-91-7485-337-7 (ISBN)
Presentation
2017-06-16, Gamma, Mälardalens högskola, Västerås, 13:15 (English)
Opponent
Supervisors
Projects
Verispec
Funder
VINNOVA, 16335
Available from: 2017-05-24 Created: 2017-05-24 Last updated: 2017-07-10Bibliographically approved

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