NUCLARR and human reliability: data sources and data profile

The Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR) is an automated database management system used to process, store, and retrieve human and equipment reliability data. Human error rate data are stored and accessed according to the personnel, human actions, and equipment included in the error. All examples of human error represented in this database are quantitative in nature. Additional information is supplied regarding plant conditions performance shaping factors, and the data source. Probabilities and corresponding confidence bounds are presented to the analyst in an easy-to-use personal computer environment. The database accepts probabilistic estimates called from the most recent human reliability assessment methods. A number of data from a variety of sources have been entered into NUCLARR. The nature of these sources, a profile of the type of estimation methods represented, and a profile of the data themselves are presented. Suggestions are made as how to enrich the nature of the data resident in the system by increasing the diversity of sources represented.<>