| Presentation | 2007/1/25 Status of the IEC Standard of Functional Safety for Revision : On the Requirement of Safe Failure Fraction(SFF) Yoshinobu SATO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The standard of functional safety requires the subsystems of safety-related system(SRS) to conform with architectural constraints consisting of both random hardware-fault tolerance and safe failure fraction(SFF) constraints as denoted in Part 2 of the standard. The architectural constraints put limitations on the claim that the subsystems can have the highest safety-integrity level(SIL). Therefore, the constraints are highly important requirements as well as those on SIL in the standard. However, the constraints look like themselves to contradict logically the SIL requirements in Part 1 of the standard. Thus, in the present paper how and why the SFF constraints do not bring about logical coherency in the standard is discussed and examined. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Functional Safety / Safety Integrity Level / SIL / Safe Failure Fraction / SFF |
| Paper # | SSS2006-32 |
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| Conference Information | |
| Committee | SSS |
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| Conference Date | 2007/1/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Safety (SSS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Status of the IEC Standard of Functional Safety for Revision : On the Requirement of Safe Failure Fraction(SFF) |
| Sub Title (in English) | |
| Keyword(1) | Functional Safety |
| Keyword(2) | Safety Integrity Level |
| Keyword(3) | SIL |
| Keyword(4) | Safe Failure Fraction |
| Keyword(5) | SFF |
| 1st Author's Name | Yoshinobu SATO |
| 1st Author's Affiliation | Faculty of Engineering, Tokyo University of Marine Science & Technology() |
| Date | 2007/1/25 |
| Paper # | SSS2006-32 |
| Volume (vol) | vol.106 |
| Number (no) | 519 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |