SILs and Software
نویسنده
چکیده
The HSE originally introduced the concept of a “level of safety integrity” in its programmable electronic systems (PES) guidelines to deal with the fact that programmable systems are likely to contain systematic design faults (primarily software defects). It was thought that systematic failures (especially those in software) could not be treated probabilistically, and safety integrity level was used as an alternative. In IEC6 1508 the SIL concept was extended to a set of levels, ranging from SIL0 to SIL4. Even at that stage, the SIL had two distinct roles:
منابع مشابه
A systematic approach to software safety integrity levelsPeter
Note: Most SVRC technical reports are available via anonymous ftp, from svrc.it.uq.edu.au in the directory /pub/techreports. Individual abstracts and compressed postscript les are available from Abstract International Standards for safety-critical software typically use notions of Safety Integrity Levels (SILs) which in our experience are dif-cult to apply and which lack credible assessment cri...
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