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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design basis events to assure the integrity of the reactor coolant pressure boundary; the capability to shut down the reactor and maintain it in a safe shutdown condition; or the capability to prevent or mitigate the consequences of accidents which could result in potential offsite exposures comparable to the applicable guideline exposures. Security - The ability to prevent unauthorized, undesired, and unsafe intrusions. Self-test - A test or series of tests, performed by a device upon itself. Self-test includes on-line continuous self-diagnostics, equipment-initiated self-diagnostics, and operator-initiated self- diagnostics. Software critical characteristics - Properties or attributes of a software or firmware product that is essential for performance if the related equipment’s safety function. Characteristics include functional requirements that are allocated to the software and the attributes of robustness, testability, or dependability, on which the staff’s safety findings are based. Software development process characteristic - A trait or property of a software development process design output that results from the implementation of a design process, including completeness, consistency, correctness, style, traceability, unambiguity, and verifiability. Software development requirement - One or more activities that a software development process must include. Software life cycle - A project-specific, time-sequenced mapping of activities [IEEE Std 1074]. Staff Requirements Memorandum (SRM) - The Commission’s decisions and directions to the staff on the issues discussed in the associated SECY. SRMs also are issued following each Commission meeting to document any discussion or request made at the meeting. Style (as a software functional characteristic) - The form and structure of a design output. Document style refers to the structure and form of a document. This has connotations of understandability, readability, and modifiability. Programming style refers