Research on Product Elements’ Safety-Critical Degree

Wu Qiong; Lyu Mingrui

doi:10.56094/jss.v51i1.171

Authors

Wu Qiong Shenyang Aerospace University
Lyu Mingrui TüV Rheinland

DOI:

https://doi.org/10.56094/jss.v51i1.171

Keywords:

safety-critical, product safety, degree, criticality

Abstract

According to system safety practice, the safety of a system is a designed characteristic. Therefore, the role of safety in the lifecycle of the system is important to consider during the design phase. There are many factors affecting product safety, and each of them plays a part in determining a product’s overall safety. It’s important to locate isolate key elements that influence a product’s overall safety, and design with those factors in mind, as well as the time, cost and effectiveness of their influence on the design phase.

The concept of “safety-critical” has long been a part of the system safety field, and scholars from different countries have studied safety-critical items in a system; unfortunately, the concept can be somewhat subjective and, often, disagreement occurs. These judgments can be affected by many factors and can cause inaccurate assumptions about which parts are critical, as well as encourages deviation in product development and maintenance that can cause serious consequences to product safety.

Author Biographies

Wu Qiong, Shenyang Aerospace University

Professor Wu Qiong has been a researcher in the field of safety science for nearly 30 years at the Shenyang Aerospace University. He is a Safety Assessor Class I and was a member of the first group of certified safety engineers. He is a member of China’s Safety Science and Engineering Education Steering Committee, and serves as an editorial board member for China’s core journals China Safety Science Journal and Safety and Environment. He attended the University of Southern California as a visiting scholar for further study from 1987 to 1988, and he has been dedicated to the research of system safety, risk management, and its application to product safety assessment and insurance practice.

Lyu Mingrui, TüV Rheinland

Lyu Mingrui works on the safety certification of products in TüV Rheinland (China) Ltd. She was a postgraduate student of Professor Wu at the Shenyang Aerospace University, and has been conducting research on the assessment of product safety.