Formal Modeling and Verification of Safety-Critical Software
Rigorous quality demonstration is important when developing safety-critical software such as a reactor protection system (RPS) for a nuclear power plant. Although using formal methods such as formal modeling and verification is strongly recommended, domain experts often reject formal methods for fou...
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| Published in | IEEE software Vol. 26; no. 3; pp. 42 - 49 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Los Alamitos
IEEE
01.05.2009
IEEE Computer Society |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0740-7459 1937-4194 |
| DOI | 10.1109/MS.2009.67 |
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| Abstract | Rigorous quality demonstration is important when developing safety-critical software such as a reactor protection system (RPS) for a nuclear power plant. Although using formal methods such as formal modeling and verification is strongly recommended, domain experts often reject formal methods for four reasons: there are too many candidate techniques, the notations appear complex, the tools often work only in isolation, and output is often too difficult for domain experts to understand. A formal-methods-based process that supports development, verification and validation, and safety analysis can help domain experts overcome these obstacles. Nuclear engineers can also use CASE tools to apply formal methods without having to know details of the underlying formalism. The authors spent more than seven years working with nuclear engineers in developing RPS software and applying formal methods. The engineers and regulatory personnel found the process effective and easy to apply with the integrated tool support. |
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| AbstractList | Rigorous quality demonstration is important when developing safety-critical software such as a reactor protection system (RPS) for a nuclear power plant. Although using formal methods such as formal modeling and verification is strongly recommended, domain experts often reject formal methods for four reasons: there are too many candidate techniques, the notations appear complex, the tools often work only in isolation, and output is often too difficult for domain experts to understand. A formal-methods-based process that supports development, verification and validation, and safety analysis can help domain experts overcome these obstacles. Nuclear engineers can also use CASE tools to apply formal methods without having to know details of the underlying formalism. The authors spent more than seven years working with nuclear engineers in developing RPS software and applying formal methods. The engineers and regulatory personnel found the process effective and easy to apply with the integrated tool support. Rigorous quality demonstration is important when developing safety-critical software such as a reactor protection system (RPS) for a nuclear power plant. Although using formal methods such as formal modeling and verification is strongly recommended, domain experts often reject formal methods for four reasons: there are too many candidate techniques, the notations appear complex, the tools often work only in isolation, and output is often too difficult for domain experts to understand. A formal-methods-based process that supports development, verification and validation, and safety analysis can help domain experts overcome these obstacles. Nuclear engineers can also use CASE tools to apply formal methods without having to know details of the underlying formalism. The authors spent more than seven years working with nuclear engineers in developing RPS software and applying formal methods. The engineers and regulatory personnel found the process effective and easy to apply with the integrated tool support. [PUBLICATION ABSTRACT] |
| Author | Eunkyoung Jee Sungdeok Cha Junbeom Yoo |
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| DOI | 10.1109/MS.2009.67 |
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| SubjectTerms | Automation Computer aided software engineering Computer programs Control systems Embedded software Failure analysis Formal method formal methods Formalism function block diagram (FBD) Language Logic testing modeling Nuclear engineering Nuclear power generation Nuclear power plants Nuclear reactors Product development Program verification (computers) Programmable control Protection systems Requirements analysis Safety management safety-critical software Semantics Software Software development Software engineering Software safety Software testing Software tools Subject specialists US Department of Transportation verification |
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| Title | Formal Modeling and Verification of Safety-Critical Software |
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