IEEE Std 845:1999 pdf download.IEEE Guide for the Evaluation of Human-System Performance in Nuclear Power Generating Stations.
This document provides guidance for evaluating human-system performance related to systems, equipment, and facilities in nuclear power generating stations. It summarizes specific evaluation techniques and presents rationale for their application within the integrated systems approach to plant design. operations, and maintenance described in IEEE Std 1023-1988.
1.2 Purpose
This document provides guidance for the selection and application of human performance evaluation techniques. It summarizes various techniques and presents recommendations for their application. Tasks to which they may he applied include the following:
a) Investigating human-system performance characteristics;
h) Testing design or operating approaches for adequacy;
c) Comparing alternative designs or configurations; or
d) Evaluating the maintainability of the system.
This guide is for use by personnel who are timiliar with the concepts of formal human factors analysis, hut not necessarily familiar with the details of specific techniques.
2. Definitions
For the purposes of this guide. the following terms and definitions apply. IEEE Std l(X)-19% [B21 should he referenced for terms not defined in this clause.
2.1 human-system interface (HSI): The ineraction between workers and their equipment. This interaction requires information to flow in two directions. The system provides status information to the user, and the user provides control information to the system. [Used in other texts as man-machine interface (MMI), human-machine interface (HMI), human-machine system (HMS), and human-computer interface (HCI).1 (For further information see IEEE Std 1289-1998 [B5j.)
2,2 system development cycle: The life cycle through which a system is developed, which consists of the following:
a) Concept development;
h) Design;
c) Test and construction;
d) Operation; and
e) Maintenance (see IEEE Std 1023-1988 $31).
3. Evaluating human-system performance
3.1 General
To evaluate human-system performance, the evaluator needs to recognize that human performance is integral to system performance throughout design, development, testing, operation, and maintenance activities. Therefore, human performance is an integral part of system performance evaluation. Human performance is influenced by many factors, For example. environmental conditions: organizational design; training; and physiological, perceptual. and cognitive processes all influence human performance. The evaluator can apply various measures and evaluation techniques to formally evaluate the performance of people on tasks of interest.
There are several considerations that are associated with evaluating human-system performance. These include the following:
a) Selection and implementation of the measure and technique;
b) Analysis and interpretation of human performance data;
c) Measuring cognitive processes;
d) Generalizing from experimental studies; and
e) Establishing meaningful performance criteria for some tasks.
A comprehensive approach to human-system performance evaluation will require attention to these considerations. This guide includes brief discussions of selected considerations as they relate to the performance evaluation techniques recommended here. For a more detailed discussion of potential considerations, see ANSI!AIAA G-035-1992 [BI 1.
This guide describes human-system performance evaluation techniques that may he used to support the systems design approach described in IEEE Sid 1023-1988 [B3]. These evaluation techniques include paper and pencil, observational, expert judgment. and experimental techniques. IEEE Std 845 pdf download.