Human performance data acquisition and management for reliability evaluations

The Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR) is an automated data base management system used to process, store and retrieve human error probability (HEP) and hardware component failure rate data in a ready to use format. The data base has now been implemented and efforts continue to identify and process qualified sources of data. A Clearinghouse function has been established at the Idaho National Engineering Laboratory (INEL) to: handle requests for data, issue software, answer user questions, and publish NUREG/CR-4639 Volume IV: User's Guide. In order to reflect the continual addition of data to NUCLARR, the Clearinghouse issues update pages to Volume V: Data Manual. This presentation summarizes existing HEP data in terms of the type of plant systems, components and displays, controls and indicators used by plant personnel. Most NUCLARR data comes from NUREG, laboratory or consensus expert judgement sources. Suggestions are made regarding obtaining and processing additional data from root cause data bases, sister industries, and the international community at large