• Journal of the Korean Society for Precision Engineering
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• v.11 no.4
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• pp.158-164
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• 1994

A volumetric error compensation method was stueide with measuring systematic error of a Coordinate Measuring Machine(CMM). The volumetric error equations were proposed for a Moving Bridge type CMM. Using the error equations, error vectors in the measuring volume were corrected by a software method. The CMM was controlled by the compensation program separately in the measuring and moving function of the CMM proving. The linear accuracy of the CMM was measured by the Laser Interferometer and compared with the data before the volumetric error compensation. This method was proved as low cost and effective to reduce the systematic error of the CMM, as no hardware modification is required.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1997.10a
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• pp.45-48
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• 1997

SEI(Software Engineering Institute)의 CMM(Capability Maturity Model)은 소프트웨어 개발 공정 및 조직의 성숙도를 5개의 계층적인 단계로 분류, 평가하며, 성숙도 측정의 기준으로 계량적인 메저먼트를 각 단계별로 제시하고 있다. 본 연구에서는 CMM에 의해 제시된 메저먼트에 근거하여 정의되고 사용된 척도의 선정에 정보시스템 개발 및 품질 관리 기법인 QFD(Quality Function Deployment)를 적용하였다. 척도 사용자 그룹으로부터 CMM의 관심 영역, 사용 척도, 척도 계산에 필요한 측정치, 소프트웨어 개발 생명주기에 이르는 과정을 단계적인 흐름으로 파악하여 적절한 척도를 선택하는 데 본 연구의 목적이 있다.

• Korean Journal of Veterinary Research
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• v.7 no.1
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• pp.1-7
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• 1967

Clinically healthy Korean adult cattle (20 females and 20 males) were selected and subjected to the experiments on the determination of erythrocytes and total leukocytes values at the stages of pre and post-slaughting. Throughout the studies the following results were obtained. 1. The erythrocytes values, at the stage of the pre-slaughter, of females and males were $6.070{\times}10^6/cmm$ and $6.175{\times}10^6/cmm$ respectively. In the case of post-slaughter stage, $7.780{\times}10^6/cmm$ and $7.705{\times}10^6/cmm$ were obtained for female and male respectively. In comparison on the values of erythrocytes between pre and post-slauglnter stages, the mean value of the latter has been increased significantly. 2. The total leukocytes value, at the stage of the pre-slaughter of females and males were 9,525/cmm and 9,630/cmm respectively. In the case of post-slaughter stage, 7,545/cmm and 7,510/cmm were obtained for females and males respectively. In comparison on the values of total leukocytes between pre and post-slaughter stages, the mean value of the latter has been decreased significantly.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.995-1000
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• 2008

Software Process Improvement(SPI) becomes an important issue at software quality. A research model is suggested on the basis of previous literature. The model includes success factors for SPI as independent variables and CMM levels as mediating variables, and defines organizational performance as dependent variables. This study basically investigates causational relationships among SPI success factors, CMM levels, and organizational performance through a structured equation model. A LISREL v8.72 for windows is used for statistical analysis. Even through success factors for SPI partially influences the CMM level, the CMM level is fully related to the level of organizational performance. The results show that the success factor for SPI in Korean companies are not equal to the factors abroad, but indicate that the CMM level is closely related to the organizational performance. These results will be helpful to academicians as well as to practitioners.

• Transactions of the Korean Society of Mechanical Engineers
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• v.18 no.9
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• pp.2358-2367
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• 1994

This paper presents techniques for evaluation and compensation of total measuring errors in a commercial CMM. The probe errors as well as the machine geometric errors are assessed from probing of the mechanical artefacts such as shpere, step, and rings. For the error compensation, the integrated volumetric error equations are considered, including the probe error adn the machine geometric error. The error compensation is performed on the absolute scale coordinate system, in order to overcome the redundant degree of freedom in the CMM with multi-axis probe. A interface box and corresponding software driver are developed for data intercepting/correction between the machine controller and machine, thus the volumetric errors can be compensated in real time with minimum interference to the operating software and hardware of a commercial CMM. The developed system applied to a practical CMM installed on the shop floor, and demonstrated its performance.

• 한국IT서비스학회:학술대회논문집
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• 2003.05a
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• pp.371-375
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• 2003

소프트웨어 영역이 빠른 속도로 확장되고 있는 시점에서 고품질의 소프트웨어를 생산하는 것이 효과적인 정보시스템 구축을 위한 필수조건이다. 이러한 인식을 바탕으로 소프트웨어 품질을 개선하기 위한 다양한 시도가 이루어지고 있으며 현재 소프트웨어 개선 및 평가에 사용되는 프로세스 가장 광범위하고 효과적인 프레임워크 중의 하나가 바로 카네기멜론 대학교의 소프트웨어공학 연구소에서 개발한 CMM이다. CMM은 조직의 업무 수행능력을 진단은 물론 지속적인 개선을 통하여 소프트웨어의 생산성 향상과 품질을 개선하는데는 큰 성공을 거둔 반면, CMM의 여러 CMM 모델들을 하나의 프로그램에 사용할 경우 분석의 논점을 어지럽혀 혼란을 야기시킬 수 있다는 문제점을 내포하고 있다. 본고에서는 CMM과 그 한계를 극복하기 위해 새로운 대안으로 부상하고 있는 CMMI의 등장배경과 CMM과의 차이점 등에 대해 살펴보고, 국방정보화 평가 영역에서 CMMI의 활용방안에 대해 살펴보고자 한다.

• Review of KIISC
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• v.11 no.6
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• pp.1-11
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• 2001

정보보안 분야가 성숙해짐에 따라 다양한 평가방법론들이 개발되어 적용되고 있다. 그러한 방법론들 중에서 본고에서는 품질 보증의 수단으로써 정보보안 제품/시스템의 개발기관의 보안공학 수행 능력을 평가하기 위한 SSE-CMM에 대하여 살펴본다. SSE-CMM의 개념적 기초가 되는 보안공학에 대하여 먼저 살펴보고, 보안공학 수행 능력의 수준을 평가하기 위한 평가 기준의 체계와 구성과 함께, SSE-CMM을 이용하여 평가를 수행하기 위한 평가방법론을 구체적으로 제시하고 있는 SSAM에 대하여도 살펴본다. SSE-CMM이 근거하고 있는 보안공학은 효과적인 정보보안을 도모하기 위한 개념적 틀이라는 점을 몇 가지 정보보안관리 지침들과의 비교를 통하여 논의하였다. SSE-CMM은 현재 ISO 표준으로 상정되어 표준화가 진행 중이다. 정보보안 분야의 여러 평가방법론들과 더불어 보다 다양한 관점에서 정보보안의 효과성을 보증해주는 도구로 활용될 것이다.

• Journal of the Korean Society for Precision Engineering
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• v.21 no.11
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• pp.99-109
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• 2004

This paper proposes precision evaluation method for the positioning error of three-DOF translational parallel mechanism. The proposed method uses conventional CMM as metrology equipment to measure the position of end-effector. In order to obtain accurate measurement data from CMM, the transform relationship between the coordinate system of the parallel mechanism and the CMM coordinate system must be identified. For this purpose, a new coordinate referencing (or coordinate system identification) technique is presented. By using this technique accurate coordinate transformation relationships are efficiently established. According to these coordinate transformation relationships, an equation to calculate error components at any arbitrary position of the end-effector is derived. In addition, mathematical fitting models to represent the position error components in the two-dimensional workspace of the parallel mechanism are also constructed based on response surface methodology. The proposed error evaluation method proves its effectiveness through the experimental results and its application to real three-DOF parallel mechanism.

• The KIPS Transactions:PartD
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• v.11D no.2
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• pp.387-396
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• 2004

Qualify of software development project is very important in complex and large domestic software market. Software development companies are eager to Bet some quality certification such as CMM certification. However, reliability and effectiveness of CMM certification tomes into question. This study explores the relationships between software project Quality (and some organizational performance) and organization's CMM certification. The result shows no strong relationships between project quality and CMM certification. This may imply that an incremental improvement of project process plays a more important role than certification process itself.

• Ocean policy research
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• v.33 no.2
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• pp.205-228
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• 2018

Since many RFMOs have been established, various measures to protect small island developing States have been enacted. WCPFC CMM 2017-01 also enacted various measures for that purpose. However, it is notable that CMM 2017-01 has enacted a measure in a manner to reduce benefits of the small island developing States in relation to the vessel charter scheme, although it has made another exception. This study aims to draw implications in establishing Korea's fisheries policy and making an appropriate strategy of the fisheries industries in Korea, through analyses of the charter issue in the WCPFC CMM 2017-01. This paper examines an issue of the vessel charter scheme in the WCPFC CMM 2017-01 comparing with the flag of convenience issue. It concludes that it is recommended to further restrict the application of the vessel charter scheme in the WCPFC CMM 2017-01 and to repeal it ultimately. Finally, this paper draws implications for the Korean government to participate in the WCPFC in a manner to reflect its positions and to harmonize interests of the fishing States and the small island developing States, considering various joint venture business with such States. It further draws implications for the fisheries industries in Korea to actively participate in the WCPFC to maximize their interests.