The exida IEC 61508 Certification Program was established in 2005 in response to demand primarily from end users in the process industries and manufacturers of instrumentation products. There was a need to provide a higher quality of technical expertise with effective...
This document is intended for readers who are familiar with the international safety standard IEC 61508 in general and with that document’s Part 7: Annex D in particular. As currently written, Annex D provides “initial guidelines on the use of a probabilistic approach...
International safety standard IEC 61508‐7 Annex D prescribes sampling sizes of safety critical software (SW) inputs needed to be consecutively processed correctly in order to ascertain that the SW meets a certain safety integrity level (SIL) with a certain statistical...
In today’s world many potentially dangerous pieces of equipment are controlled by embedded software. This equipment includes cars, trains, airplanes, oil refineries, chemical processing plants, nuclear power plants and medical devices. As embedded software becomes...
