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ISSN : 1229-6783(Print)
ISSN : 2288-1484(Online)
Journal of the Korea Safety Management & Science Vol.15 No.1 pp.293-301
DOI : https://doi.org/10.12812/ksms.2013.15.1.293

High Throughput 프로세스에서 품질혁신의 성능평가를 위한 Z-Factor의 적용방안

최 성 운*
*가천대학교 산업공학과

Implementation of Z-Factor Statistics for Performance Evaluation of Quality Innovation in the High Throughput Process

Sung-Woon Choi*
*Department of Industrial Engineering, Gachon University
Received Octorber 4, 2012; Revision Received November 29, 2012; Accepted December 21, 2012.

Abstract

The purpose of this study is to introduce the limit of previously used six sigma quality process evaluationmetrics, Zst and Ppk, and a solution to overcome this drawback by using a metric based on performanceevaluation of Z-factor quality innovation. Case analysis on projects from national six sigma contest from 2011to 2012 is performed and literature review on new drug development HTS (High Throughput Screening) isused to propose innovative performance evaluation metrics. This research shows that experimental study on sixsigma evaluation metric, Zst and Ppk, have no significance difference between industrial type (Manufacturing,Semi-Public Institute, Public Institute) and CTQ type (Product Technology Type CTQ, Process TechnologyType CTQ). Following discovery characterize this quality improvement as fixed target type project. As newlydeveloped moving target type of quality innovation performance metric Z-Factor is used for evaluatingexperimental study, hypothetical analysis suggests that Zst and Ppk share different relationship or even showreciprocal relationship. Constraints of the study are relatively small sample size of only 37 projects from past 2years and conflict on having interview and communication with six sigma quality practitioner for qualitativeexperimental study. Both moving target type six sigma innovation project and fixed target type improvementproject or quality circle enables efficient ways for a better understanding and quality practitioner use byapplying quality innovation performance metric. Downside of fixed target type quality performance evaluationmetric, Zst and Ppk, is presented through experimental study. In contrast, advantage of this study is that highthroughput requiring product technology, process technology and quantum leap typed innovation effect isevaluated based on precision and accuracy and Z-Factor that enables relative comparison between enterprises isproposed and implemented.

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