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모바일 폰의 애프터서비스 품질요인이 고객만족에 미치는 영향도 차이에 관한 연구
조진형,이재준,구자활 한국산업경영시스템학회 2011 한국산업경영시스템학회 학술대회 Vol.2011 No.춘계
세계는 무선통신 기술의 발달로 휴대용 모바일 폰의 형태도 단순 무선통신을 하는 휴대폰에서 휴대폰과 개인휴대단말기(personal digital assistant; PDA)의 장점을 결합한 것으로 일정관리, 팩스 송수신 및 인터넷 접속 등의 데이터 통신기능을 통합시킨 스마트폰이 출시되었다. 이 스마트폰은 완제품으로 출시되어 주어진 기능만 사용하던 기존의 휴대폰과는 달리 수백여 종의 다양한 애플리케어션(응용프로그램)을 사용자가 원하는 대로 설치하고 추가 또는 삭제할 수 있는 특징을 가지고 있다. 이에 모바일 폰의 사장도 노키아와 삼성 중심의 휴대폰 시대에서 애플의 독주와 삼성전자 등이 뒤를 쫒고 있는 스마트폰 시대로 전환하였다. 스마트폰의 편리성, 기능성 등을 이유로 많은 고객들이 고가임에도 불구하고 스마트폰을 구입하고 사용하기 시작하였다. 하지만 몇몇 사용 중 기능고장 등으로 인한 애프터서비스의 부실로 고객의 불만이 상승하고 있다. 이에 본 연구에서는 기존 핸드폰과 스마트폰의 애프터서비스 품질 구성요인을 분석하고, 고객감동 요인, 고객만족 요인, 고객불만해소 요인의 존재 및 차이 여부를 평가하고, 나아가 이 품질 구성요인이 고객만족과 기업성과에 미치는 영향도를 분석하고 평가함으로써 기존 핸드폰 시장에서 애프터서비스 전략과 스마트폰 시장에서 애프터서비스 전략이 어떻게 차별화 되여야 하는지에 대한 방향을 제시하고자 한다.
조진형,이도경,김상호 금오공과대학교 산업기술개발연구원 2001 産業技術開發硏究 Vol.17 No.-
Box-Cox model by HuIten and Wykoff and T-factor method by Elfar and Whelan, adopted the assumptions of the characteristics of capital assets, and are still widely used today even though their assumptions were weak. We improve the Box-Cox model by combining the existing economic efficiency and depreciation pattern, based on the efficiency curve of marginal productivity and reliability function. Thus, Rayleigh curve which has been used for the reliability of current capital assets was chosen as m efficiency curve. As a result, it was possible to classify the efficiency curves into 4 kinds rather than the existing 3, as well as the types of depreciation curves. In this paper, therefore, the power family of the Box-Cox model which was a non-linear regression model would be identified, by utilizing the reliability functions. In addition, Box-Cox model as a linear model to measure economic depredations. Based on these result it is easy to estimate economic depreciations as well as to test depreciation rates.
조진형,이세재,엄광용,박철 한국산업경영시스템학회 2003 한국산업경영시스템학회 학술대회 Vol.2003 No.춘계
Most of the Korea"s small and medium sized firms have been subcontracted in mechanical and electronics industries. It is focused on packing subcontracting in an electronics industry which exports products to its foreign plants at non-mass jobbing production. This study suggests a estimation method of the subcontracting cost in packing work, considering work omission rate, ware in process, lot size, learning effect, and MARR.
조진형,오현승,이세재 한국산업경영시스템학회 2023 한국산업경영시스템학회지 Vol.46 No.1
The records system is believed to have started in Italy in the 14th century in line with trade developments in Europe. In 1491, Luca Pacioli, a mathematician, and an Italian Franciscan monk wrote the first book that described double-entry accounting processes. In many countries, including Korea, the government accounting standards used single-entry bookkeeping rather than double-entry bookkeeping that can be aggregated by account subject. The cash-based and single-entry bookkeeping used by the government in the past had limitations in providing clear information on financial status and establishing a performance-oriented financial management system. Accordingly, the National Accounting Act (promulgated in October 2007) stipulated the introduction of double-entry bookkeeping and accrual accounting systems in the government sector from January 1, 2009. Furthermore, the Korean government has also introduced International Financial Reporting Standards (IFRS), and the System of National Accounts (SNA). Since 2014, Korea owned five national accounts. In Korea, valuation began with the 1968 National Wealth Statistics Survey. The academic origins of the valuation of national wealth statistics which had been investigated by due diligence every 10 years since 1968 are based on the 'Engineering Valuation' of professor Marston in the Department of Industrial Engineering at Iowa State University in the 1930s. This field has spread to economics, etc. In economics, it became the basis of capital stock estimation for positive economics such as econometrics. The valuation by the National Wealth Statistics Survey contributed greatly to converting the book value of accounting data into vintage data. And in 2000 National Statistical Office collected actual disposal data for the 1-digit asset class and obtained the ASL(average service life) by Iowa curve. Then, with the data on fixed capital formation centered on the National B/S Team of the Bank of Korea, the national wealth statistics were prepared by the Permanent Inventory Method(PIM). The asset classification was also classified into 59 types, including 2 types of residential buildings, 4 types of non-residential buildings, 14 types of structures, 9 types of transportation equipment, 28 types of machinery, and 2 types of intangible fixed assets. Tables of useful lives of tangible fixed assets published by the Korea Appraisal Board in 1999 and 2013 were made by the Iowa curve method. In Korea, the Iowa curve method has been adopted as a method of ASL estimation. There are three types of the Iowa curve method. The retirement rate method of the three types is the best because it is based on the collection and compilation of the data of all properties in service during a period of recent years, both properties retired and that are still in service. We hope the retirement rate method instead of the individual unit method is used in the estimation of ASL. Recently Korean government’s accounting system has been developed. When revenue expenditure and capital expenditure were mixed in the past single-entry bookkeeping we would like to suggest that BOK and National Statistical Office have accumulated knowledge of a rational difference between revenue expenditure and capital expenditure. In particular, it is important when it is estimated capital stock by PIM. Korea also needs an empirical study on economic depreciation like Hulten & Wykoff Catalog A of the US BEA.
우리나라 제조업에 있어 자산형태별 실질 감가상각 곡선에 관한 연구
조진형 한국산업경영시스템학회 1990 한국산업경영시스템학회지 Vol.13 No.22
Because economic depreciation includes some disciplines like economics, accounting and industrial engineering, the terminologies concerned are selected and arranged. The economic depreciation is defined with which the cases that occur when economic depreciation is measured are considered. Two major methods of the measurement of economic depreciation are reviewed these are Hulten-Wykoff's approach and Bureau of Economic Analysis of U.S.A. methodology. In its application in Korea the expected problems are presented. This paper also shows that it is rarely possible. Therefore Under the restricted condition a method to measure the economic deprection is suggested in Korea manufacturing sector.