Document: NUREG-0800
Document ID: c90016c6-e03f-4224-8ff3-87a6f7d3ca42
Document Type: srp
Title: Appendix 7-A
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500547.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
red to ensure that the computer system is functional, that the sensors and actuators are functional, that all cards are present and installed in the correct slots, and that the communication system is correctly installed. A check should be required to ensure that the correct software versions are installed on the correct computers. Installation reports should be described. The plan should require that anomalies discovered during installation be reported to the developer and resolved prior to placing the software into operation. Either this plan, or the software V&V plan, should require adequate testing to provide confidence that the installed system will perform its safety function. Plans for installation of software on installed systems in operating plants should recognize the need to declare all affected functions inoperable according to the plant’s technical specifications before proceeding with installation, and to conduct appropriate return-to-service testing before declaring the modified function operable. Resource Characteristics The resource characteristics that the software installation plan should exhibit include methods/tools. Methods/tools requires a description of the methods, techniques and tools that will be used to accomplish the installation function. The plan should require that installation tools be qualified with a degree of rigor and level of detail appropriate to the safety significance of the software which is to be installed using the tools. Appendix 7-A Rev. 4 — June 1997 BTP HICB-14-17 f. Software Maintenance Plan The software maintenance plan should exhibit the management, implementation and resource characteristics listed below. Management Characteristics The management characteristics that the software maintenance plan should exhibit include purpose, organization, responsibilities, risks, and security. Purpose requires a general description of the software maintenance process and the goals of that process. The plan should list the