Document: NUREG-0800
Document ID: bc47318d-f421-4335-b0d8-fa7f3bf3ae30
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070756.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
CFR Part: 
CFR Title: 

Content:
s that could cause undue risk to the health and safety of the public. Acceptability of the functional requirements analysis should be based on 18.0-7 DRAFT Rev. 0 - April 1996 the conformance with the review criteria of Section 4.4.2 of NUREG-0711, including 16 the following: identification of safety functions and processes, identification of those processes and functions that have been changed from those of the predecessor plant, documentation of the technical basis for changed processes, a summary description of plant processes, and detailed narrative descriptions of changed processes. An alternative functional requirements analysis method is described in 3.2.2 of NUREG-0700, Revision 1, which includes the following: identification of plant safety functions and systems, 17 identification and selection of operational events, and function description. Function allocation analysis is the analysis of requirements for plant control and the assignment of control functions to (1) personnel (e.g., manual control), (2) system elements (e.g., automatic control and passive, self-controlling phenomena), and (3) combinations of personnel and system elements (e.g., shared control and automatic systems with manual backup). Function allocation seeks to ensure overall plant safety and reliability by exploiting the strengths of personnel and system elements. Acceptability of the function allocation analysis should be based on conformance with the review criteria of Section 4.4.3 of NUREG-0711 and criterion 6 of Section 3.2.2 of Part 1 of NUREG-0700, Revision 1. In addition, the functional requirements analysis 18 and function allocation analysis should be documented as described in criterion 8 of Section 3.2.2 of Part 1 of NUREG-0700, Revision 1.19 D. Task Analysis Task analysis is the analysis of human performance demands that result from the allocation of functions to personnel and the identification of HSI characteristics needed to support personnel task accomplishment. The