Representing cognitive activities and errors in HRA trees
A graphic representation method is presented herein for adapting an existing technology--human reliability analysis (HRA) event trees, used to support event sequence logic structures and calculations--to include a representation of the underlying cognitive activity and corresponding errors associated with human performance. The analyst is presented with three potential means of representing human activity: the NUREG/CR-1278 HRA event tree approach; the skill-, rule- and knowledge-based paradigm; and the slips, lapses, and mistakes paradigm. The above approaches for representing human activity are integrated in order to produce an enriched HRA event tree -- the cognitive event tree system (COGENT)-- which, in turn, can be used to increase the analyst's understanding of the basic behavioral mechanisms underlying human error and the representation of that error in probabilistic risk assessment. Issues pertaining to the implementation of COGENT are also discussed.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls, ID (United States)
- Sponsoring Organization:
- USNRC; Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 5297333
- Report Number(s):
- EGG-HFRU-10026; ON: DE92012358
- Country of Publication:
- United States
- Language:
- English
Similar Records
Representing cognitive activities and errors in HRA trees
Challenges in leveraging existing human performance data for quantifying the IDHEAS HRA method
Related Subjects
RISK ASSESSMENT
HUMAN FACTORS
DECISION MAKING
ERRORS
FAULT TREE ANALYSIS
KNOWLEDGE BASE
MATHEMATICAL LOGIC
PROBABILISTIC ESTIMATION
SOCIO-ECONOMIC FACTORS
INSTITUTIONAL FACTORS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
990200* - Mathematics & Computers