Document: NUREG-0800
Document ID: 4f141c71-35ca-4353-9047-a13efe6d56b7
Document Type: srp
Title: Revision 6 - August 2016
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1601/ML16019A308.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
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Content:
the customers using the software should be provided, so that incorrect behavior of the software during operation can be identified, isolated and corrected. This communication structure should provide assurance that software failures during operation will not be ignored. BTP 7.14-29 Revision 6 - August 2016 Responsibilities concern a definition of the responsibilities and authority of the software maintenance organization. Risks involve a description of the method used for software risk management during maintenance, with particular attention to risks that have the potential for compromising safety. Security concerns a description of the methods to be used to prevent unintended functionality introduced into the digital safety systems per RG 1.152. The SMaintP should identify the controls needed over maintenance activities and maintenance and test equipment to prevent unauthorized changes to hardware, software and system parameters. At a minimum, the potential for introducing unauthorized changes during repair, testing and calibration should be addressed. B.3.1.6.2 Implementation Characteristics of the SMaintP The implementation characteristics that the SMaintP should exhibit include measurement and procedures. Measurement refers to a set of indicators used to determine the success or failure of the maintenance effort. The SMaintP should require that data associated with maintenance activities be collected and analyzed to determine the effectiveness of the maintenance effort. The error rate found during maintenance activities should be measured, recorded, analyzed and reported. Procedures involve a description of the maintenance strategy. These procedures may consist of two parts. The first part concerns the actions by the applicant or licensee to maintain the software. The second (optional) part, if the applicant or licensee relies on a software vendor to perform certain maintenance functions, consists of the associated vendor’s procedures. The SMaintP should