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:
nse to penetration. Implementation Characteristics The implementation characteristics that the software operations plan should exhibit include measurement and procedures. Measurement requires a set of indicators used to determine the success or failure of the operating procedures. The error rate found during operation activities should be measured, recorded, analyzed and reported. Procedures requires a description of the procedures necessary to start, operate and stop the software system. The plan should require a description of procedures for executing the software in all operating modes, and procedures for ensuring that the software state is consistent with the plant operating mode at all times. The plan should require a description of backup procedures for data and code, and the intervals at which backup should occur. The plan should require a list of error messages, giving a description of the error indication, the probable interpretation of the error indication, and steps to be taken to resolve the situation. Resource Characteristics The resource characteristics that the software operations plan should exhibit include methods/tools. Methods/tools requires a description of the methods, techniques and tools that will be used to operate the software system. The plan should describe the facilities required to operate the delivered software. It should list and describe the software, hardware and associated documentation required to operate the delivered software. i. Software Safety Plan The software safety plan should exhibit the management, implementation and resource characteristics listed below. It is acceptable to include the software safety plan in a more general project safety plan if the required content exists. The software safety plan should conform with the requirements of the design basis for the software applications involved. Management Characteristics The management characteristics that the software safety plan should exhibit include purpose,