Title

Human Reliability Assessment Using Systems Modeling Language &Amp; Tasks Based Systemic-Structural Activity Theory

Keywords

Activity theory; Control systems; Reliability; Systems dynamics; Systems modeling language

Abstract

This paper describes a new method of reliability, technology automation and manpower tradeoff assessment of power plants instrumentation, control and human machine interface technologies based on systems dynamics modeling and the systemic-structural activity theory (SSAT). The method is illustrated by a complex human-computer interaction and morphological analysis of activity. Cognitive and behavioral actions and elements of the human operator and related SSAT algorithm have been utilized as main units of analysis. The suggested method provides analytical description of human activity during key activities, and allows assessing task performance reliability. This paper shows that SSAT, with its precise units of analysis, is a very useful method for conducting reliability assessment of computer-based tasks used in nuclear power plants instruments and controls. The experimental approach and expert evaluations are closely connected with analytical methods of activity description. Such description consists of interdependent models of activity during task performance. In general, this paper demonstrates that the suggested method of reliability assessment can be very effective at the early stages of the design process and might be used as a predictive tool to assess the reliability of tasks in nuclear power plants instruments and control systems.

Publication Date

12-1-2012

Publication Title

8th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies 2012, NPIC and HMIT 2012: Enabling the Future of Nuclear Energy

Volume

3

Number of Pages

1464-1475

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84880501511 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84880501511

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