EXPLORING THE USE OF HUMAN RELIABILITY AND ACCIDENT INVESTIGATION METHODS TO INFLUENCE DESIGN REQUIREMENTS FOR NAVAL SYSTEMS
20Sep_Whitehead_Cindy.pdf (2.739Mb)Abstract
This thesis explores whether established methods from human reliability analysis and accident investigation can be applied early in system development to identify the design vulnerabilities that increase risk of system failure. Human reliability analyses evaluate performance shaping factors to quantify the likelihood of human failure before an accident occurs. Mishap investigations performed after an accident identify both human contributions to the system's failure and recommendations to avoid human failures in the future. This thesis proposes a method to evaluate system resiliency to variations in human performance and estimate the likelihood of human error. This method begins with functional analysis and failure mode analysis for a system concept, and then proposes two questionnaires based on human reliability and accident investigation criteria. This method is intended for the requirements development phase before system requirements are finalized and system design prototypes are completed. A demonstration of this method evaluates the human role using the electronic chart display and information system. Results from the demonstration reveal the two dominant factors that increase human error probability. The thesis concludes with an examination of the method's performance and results in support of validation of the method. Follow-on work is proposed to conduct a human subjects experiment for further validation and verification of the method.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United StatesCollections
Related items
Showing items related by title, author, creator and subject.
-
THE CONCEPTUAL DESIGN RELIABILITY PREDICTION METHOD: ESTABLISHING FUNCTIONAL-PHYSICAL RELIABILITY RELATIONSHIPS FOR SYSTEM RELIABILITY PREDICTIONS DURING CONCEPTUAL DESIGN
(Monterey, CA; Naval Postgraduate School, 2020-09);This paper presents a system reliability prediction method suitable for use during conceptual design, called the conceptual design reliability prediction method (CDRPM). The CDRPM extends the early design reliability ... -
Assessing Safety Climate and Organizational Risk
(HFES, 2007);Research conducted at the Navy Postgraduate School, over the past 10 years, has focused on key organizational factors that may influence the likelihood of an accident or organizational failure. The concept of “high-relia ... -
Discrete reliability growth models using failure discounting
(1987-09);Three discrete reliability models using fractional failure reduction, referred to as failure discounting, were developed to estimate changing system reliability. Each of the models is designed for use when testing is ...
