Safety Analysis in Early Concept Development and Requirements Generation
This paper shows how a new hazard analysis technique, STPA (System Theoretic Process Analysis), can be used to generate high-level safety requirements early in the concept development phase that canthenassist in the design of the system architecture. These general, system-level requirement...
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Wiley
2020
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| Online Access: | https://hdl.handle.net/1721.1/126541 |
| _version_ | 1826202128596598784 |
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| author | Leveson, Nancy G |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Leveson, Nancy G |
| author_sort | Leveson, Nancy G |
| collection | MIT |
| description | This paper shows how a new hazard analysis technique, STPA (System Theoretic Process Analysis), can be used to generate high-level safety requirements early in the concept development phase that canthenassist in the design of the system architecture. These general, system-level requirements can be refined using STPA as decisions are made. The process goes hand-in-hand with design and the rest of the lifecycle as STPA can be used to provide information to assist in decision-making throughout the development and even operations phases. STPA also fits into a model-based engineering process as it works on a model of the system (which is also refined as design decisions are made) although that model is different than the architectural models usually proposed for model-based system engineering today. The process promotes traceability throughout the development process so decisions and designs can be changed with minimum requirements for redoing previous analyses. Finally, while this paper describes the approach with respect to safety,it can be applied to any emergent system property. |
| first_indexed | 2024-09-23T12:02:39Z |
| format | Article |
| id | mit-1721.1/126541 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:02:39Z |
| publishDate | 2020 |
| publisher | Wiley |
| record_format | dspace |
| spelling | mit-1721.1/1265412022-09-27T23:43:34Z Safety Analysis in Early Concept Development and Requirements Generation Leveson, Nancy G Massachusetts Institute of Technology. Department of Aeronautics and Astronautics This paper shows how a new hazard analysis technique, STPA (System Theoretic Process Analysis), can be used to generate high-level safety requirements early in the concept development phase that canthenassist in the design of the system architecture. These general, system-level requirements can be refined using STPA as decisions are made. The process goes hand-in-hand with design and the rest of the lifecycle as STPA can be used to provide information to assist in decision-making throughout the development and even operations phases. STPA also fits into a model-based engineering process as it works on a model of the system (which is also refined as design decisions are made) although that model is different than the architectural models usually proposed for model-based system engineering today. The process promotes traceability throughout the development process so decisions and designs can be changed with minimum requirements for redoing previous analyses. Finally, while this paper describes the approach with respect to safety,it can be applied to any emergent system property. 2020-08-12T14:43:54Z 2020-08-12T14:43:54Z 2018-07 2019-10-29T17:03:37Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/126541 Leveson, Nancy G. “Safety Analysis in Early Concept Development and Requirements Generation.” Paper presented at the 28th annual INCOSE international symposium, Washington, D.C., July 7-12 2018, Wiley © 2018 The Author en 10.1002/J.2334-5837.2018.00492.X 28th annual INCOSE international symposium Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley MIT web domain |
| spellingShingle | Leveson, Nancy G Safety Analysis in Early Concept Development and Requirements Generation |
| title | Safety Analysis in Early Concept Development and Requirements Generation |
| title_full | Safety Analysis in Early Concept Development and Requirements Generation |
| title_fullStr | Safety Analysis in Early Concept Development and Requirements Generation |
| title_full_unstemmed | Safety Analysis in Early Concept Development and Requirements Generation |
| title_short | Safety Analysis in Early Concept Development and Requirements Generation |
| title_sort | safety analysis in early concept development and requirements generation |
| url | https://hdl.handle.net/1721.1/126541 |
| work_keys_str_mv | AT levesonnancyg safetyanalysisinearlyconceptdevelopmentandrequirementsgeneration |