N286.7-94

1.1 This Standard applies to the design and development, modification, documentation, execution, and configuration management of computer programs used to perform analytical, scientific, and design computations during the design and analysis of safety-related nuclear power plant equipment, systems, structures, and components as identified by the owner. 1.2 The principal activities associated with such computer programs are shown in Figure 1.1. This functional model illustrates the main interactions between these elements. The double arrows indicate how the principal activities influence each other. For example, a modification may affect the execution of a computer program. Also, experience with a computer program during execution may lead to a modification. Solid lines in Figure 1.1 indicate interactions between activities within the scope of the Standard. Interpretation of computer program results for design and analysis is outside the scope of this Standard and is normally covered by the requirements of CSA Standard CAN3-N286.2. 1.3 This Standard does not apply to commercially available and widely used database, spreadsheet, and graphics computer programs, or compilers, interpreters, and operating systems. 1.4 This Standard applies to owners and designated participants who have implemented quality assurance programs in accordance with the applicable CSA Standard in the CAN/CSA-N286 series of Standards. The requirements identified in this Standard complement those requirements in the CAN/CSA-N286 series of Standards to ensure that a complete set of quality assurance program requirements is applied to computer programs in analytical, scientific, and design applications. In particular, this applies to audits and quality assurance program reviews. 1.5 Where computer programs and associated documentation are procured from vendors who are not participants, the appropriate requirements of the CAN/CSA-Q396 series of Standards, as defined by the procuring organization, apply.