Guidance for Addressing Software Common cause Failure In High Safety-Significant Safety Related Digital I&c systems



Download 1.39 Mb.
View original pdf
Page6/51
Date17.12.2021
Size1.39 Mb.
#57931
1   2   3   4   5   6   7   8   9   ...   51
ML20245E561
Design Control Measures (DCMs) – The application of a formal methodology to the conduct of product development activities.
Latent Software Defect – Undetected errors in functional requirements, software design, or software implementation.
Process Discipline – Strict adherence to approved and documented methodologies and processes.
Random Failure – A failure occurring at a random time, which results from one or more of the possible degradation mechanisms in the hardware [IEC 61508-4, Section 3.6.5].
Safe Design Objective (SDO) – Objective criteria for addressing the potential fora software defect being introduced during the software development and integration processes.
Safety Classification (Classes) – An assignment based on functionality and safety significance. Different safety classifications (classes) require different levels of requirements (e.g., Class E versus non-Class E, or safety-related and non-safety-related).
Software – The programs used to direct operations of a programmable digital device. Examples include computer programs and logic for programmable hardware devices, and data pertaining to its operation IEEE 7-4.3.2-2016].

Download 1.39 Mb.

Share with your friends:
1   2   3   4   5   6   7   8   9   ...   51




The database is protected by copyright ©ininet.org 2024
send message

    Main page