Research Article | OPEN ACCESS
A Study on the Design Risk Reduction Using QFD Technique that Incorporates Joint Reliability Importance
1Young Min Kim and 2Jae Chon Lee
1Division of Systems Engineering Business, SPID Consulting, Seoul
2Department of Systems Engineering, Ajou University, Suwon, Korea
Research Journal of Applied Sciences, Engineering and Technology 2016 12:1182-1189
Received: August ‎24, ‎2015 | Accepted: September ‎14, ‎2015 | Published: June 15, 2016
Abstract
As the system developed recently becomes larger, it’s increasingly difficult to design the system. Particularly, such a large complex system contains many problems at development stage that is directly related to safety issue. Railroad car today has been developed as much as to run automatically without driver. Viewing such development, LRT requires more design reliability than anything else. This study is intended to refine the requirements using QFD that was improved based on requirements at design stage as well as incorporate the importance into the design. QFD has been mainly used in product development from design standpoint. Thus this study, to make sure the safety in system design, proposes QFD methodology improved through implementing operational concept and hierarchical approach-based system engineering. Furthermore, joint reliability importance is introduced to consider the safety at design stage so as to lay the foundation to ensure the safety will be maintained at design stage using QFD. As keyword and inter-working component to design requirements for safety are distinguishable in this study, they would be used as core data in integrating the design of LRT system.
Keywords:
Complexity, joint reliability importance, light rail transit, QFD, system design, safety, requirements priority,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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