Document: NUREG-0800
Document ID: 4f097781-0d4c-4b5b-be06-a3cd19ae9fe8
Document Type: srp
Title: Revision 5 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660430.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
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Content:
equirements, design, implementation, integration, validation, installation, and operations and maintenance. Activity - A group of related tasks [IEEE Std 1074]. Auxiliary supporting features and other auxiliary features - Typically are electric power systems, diesel generator fuel storage and transfer systems, instrument air systems, HVAC systems for ESF areas, and essential service water and component cooling water systems. Figure 3 of IEEE Std 603-1991, “Examples of Equipment Fitted to Safety System Scope Diagram,” provides a matrix with an extensive list of auxiliary supporting features and other auxiliary features. Commission Papers - Written issues papers the NRC staff submits to the Commission to inform them about policy, rule making, and adjudicatory matters. Completeness - Those attributes of the design outputs that provide full implementation of the functions required of the software. The functions which the software is required to perform are derived from (1) the general functional requirements of the safety system, and (2) the assignment of functional requirements to the software in the overall system design. Configuration control board - The authority responsible for evaluating and recommending disposition of proposed changes. Configuration management - A discipline applying technical and administrative direction and surveillance to: identify and document the functional and physical characteristics of a configuration item, control changes to those characteristics, record and report change processing and implementation status, and verify compliance with specified requirements [610.12]. Consistency (as a software functional characteristic) - The degree of freedom from contradiction among the different documents and components of a software system. Internal consistency denotes the consistency within the different parts of a component; for example, a software design is internally consistent if no set of design elements are mutually contradictory.