• Journal of Information Technology Applications and Management
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• v.20 no.1
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• pp.1-17
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• 2013

It has been found that users' characteristics are important variables that explain information systems adoption. These user groups, which are called COIs (Community Of Interests), might show different behaviors to each other to the same information system. We study differences in MDM (master data management) system adoption between military users and SI developers using TAM (Technology Acceptance Model). In case of military users, the perceived usefulness of an MDM system does not have impacts on intention to use an MDM system. Only the ease of use of an MDM system has impacts on intention to use an MDM system. However, in case of SI developers, both the perceived usefulness and the ease of use of an MDM system have impacts on intention to use an MDM system, which are similar to findings in previous studies. These results might be interpreted that users do not pay much attention to the usefulness in adopting a new information system in a centralized organization. They are obligated to use an information system whether it is useful or not. Thus the ease of use has more impacts on users than the usefulness.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.698-701
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• 2013

현대 사회는 모바일 장치와 통신기술의 발달로 장소와 상관없이 자유롭게 네트워크에 접속할 수 있게 되었다. 모바일 디바이스 사용자의 폭발적인 증가는 이동성이 보장된 모바일 오피스 환경 구현을 가속화시키고 있으며 개인의 모바일 기기를 업무에 사용하는 경향도 두드러지고 있다. 개인소유 디바이스를 통해 기업 네트워크에 접속하는 횟수가 늘어나면서 기기를 통해 중요한 데이터의 분실이나 유출과 같은 보안 문제를 해결하려는 연구들이 발표되었다. 이와 같은 보안 문제 해결 방안으로 통합적으로 이동 단말을 관리하는 MDM(Mobile Device Management) 시스템 도입이 전망되고 있다. 하지만 아직 MDM 시스템에 대한 위협, 보안에 대한 연구가 미흡하다. 이에 본 논문에서는 보안강화와 효율적인 MDM 시스템 사용을 위해 MDM 시스템을 기반으로 위치정보를 활용하여 모바일 오피스 보안 시스템을 설계하였다.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.243-250
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• 2016

Recently, with the rise of the mobile device, from mobile devices the user who owns the security, speed up the implementation of the guarantee management environment as businesses and individual equipment for the effcient management of the existing system, but the introduction of the MDM MDM App management features administrators to register the App until you can't prvent the security threat. Therefore, this paper addresses these issues in order to improve the security of your application for the control system. The proposed system is a function of the MDM authentication technology to design analysis, and system architecture to help prevent information disclosure within the design and implementation of Mobile-based application control system. Implementation of the control system to assess the security of the international common criteria security evaluation complete the test scenarios on the basis of the test items. An average of 40% of the test results to verify the results of this enhanced security.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.32 no.4
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• pp.38-44
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• 2009

본 연구는 BPR(Business Process Reengineering)을 이루기 위한 가장 근본적이고 중요한 정보의 통합관리로써 MDM(Master Data Management)이라는 기준정보 관리 체계를 제시하였으며, 효과를 산출하기 위하여 국내의 글로벌 A 기업이 수행한 MDM 시스템을 분석하였다. 인사 및 고객 정보 위주로만 사용되었던 MDM을 제품 생산에 직접적으로 연관된 장비와 자재 부문까지 확장시켜 전사적으로 기업을 관리할 수 있는 정보 관리 체계의 효과를 분석하는 것이 본 연구의 목적이다. MDM은 전사의 가치 있는 기준정보를 명확히 정의하고 이를 하나의 데이터 시스템에서 관리하여 정보의 품질과 객관성을 유지시키는 동시에 기업환경에 맞춰 생성 및 수정을 하여 현실성을 유지시킨다. 또한 중앙 분산식 데이터 시스템을 사용함으로써 기준정보를 만들어 내거나 또는 사용하는 모든 정보시스템은 MDM을 거친 정보를 제공받음으로써 데이터의 적합성과 신뢰성을 보장받는다.

• Journal of Digital Convergence
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• v.8 no.4
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• pp.73-82
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• 2010

Auto-industry is very difficult to standardize item code generation rule, because it has more than 20,000 parts in this industry. As finished good companies have already used the ERP system such as SAP, they have a good Master Data Management(MDM) system. However, since many supplier companies have poor MDM system, they have a lot of barriers on system implementation like ERP, MES. PDM systems. This study surveys various benchmarking sites and investigates the standardization of item code of the auto-parts manufacturing companies. Finally, this study proposes the implementation guide (IMG) of auto-industry MDM standardization.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.7
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• pp.2707-2712
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• 2015

Background: The human homologue of the mouse double minute 2 (MDM2) gene is a negative regulator of Tp53. MDM2-309T>G a functional promoter polymorphism was found to be associated with overexpression thereby attenuation of Tp53 stress response and increased cancer susceptibility. We have planned to evaluate the possible role of MDM2-309T>G polymorphism with risk and response to chemotherapy in AML. Materials and Methods: A total of 223 de novo AML cases and 304 age and sex matched healthy controls were genotyped for the MDM2-309T>G polymorphism through the tetra-primer amplification refractory mutation system (ARMS)-PCR method. In order to assess the functional relationship of -309T>G SNP with MDM2 expression level, we quantified MDM2 mRNA in 30 primary AML blood samples through quantitative RT-PCR. Both the (-309T>G) genotypes and the MDM2 expression were correlated with disease free survival (DFS) rates among patients who have achieved complete remission (CR) after first induction chemotherapy. Results: MDM2-309T>G polymorphism was significantly associated with AML development (p<0.0001). The presence of either GG genotype or G allele at MDM2-309 confered 1.79 (95% CI: 1.12-2.86; p<0.001) and 1.46 fold (95%CI: 1.14-1.86; p= 0.003) increased AML risk. Survival analysis revealed that CR+ve cases with GG genotype had significantly increased DFS rates (16months, p=0.05) compared to CR+ve TT (11 months) and TG (9 months) genotype groups. Further, MDM2 expression was also found to be significantly elevated in GG genotype patients (p=0.0039) and among CR+ve cases (p=0.0036). Conclusions: The MDM2-309T>G polymorphism might be involved in AML development and also serve as a good prognostic indicator.

• Genomics & Informatics
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• v.18 no.1
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• pp.9.1-9.5
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• 2020

Ulcerative colitis is a form of inflammatory bowel disease characterized by chronic inflammation of the colon and rectum. The abnormal lesions in the digestive system caused by ulcerative colitis and intermittent colitis are of major clinical importance. MDM2 is a phospho-protein that functions as a ubiquitin ligase for p53. Recently, a T>G substitution in the promoter of the MDM2 gene (rs309) has been identified. In this case-control study, 174 ulcerative colitis biopsy samples and 82 control samples were collected from colonoscopy centers, hospitals, and clinics in Mazandaran and Gilan Provinces in Iran from October 2014 to May 2015. This MDM2 polymorphism was investigated in DNA samples (extracted from biopsy samples) by amplification-refractory mutation system polymerase chain reaction. The mean age of patients with ulcerative colitis was 46.5 years (range, 28 to 69 years) and that of control individuals was 45.3 years (range, 26 to 71 years). Seventy-eight patients (44.82%) were men and 96 (55.18%) were women. The distribution of the TT, TG, and GG genotypes was 17.93%, 27.59%, and 34.48%, respectively, in the ulcerative colitis patients and 31.70%, 24.40%, and 43.90%, respectively, in the control individuals (odds ratio of GG for ulcerative colitis, 7.142; 95% confidence interval, 2.400 to 9.542; p = 0.001). It was found that a single-nucleotide polymorphism at rs309 in the MDM2 gene was associated with ulcerative colitis. A direct relationship was found between age and ulcerative colitis, while no relationship was found with sex. This finding is of note because the occurrence of intestinal inflammation and subsequent ulcers can precede the development of cancer.

• Journal of the Korean Institute of Telematics and Electronics
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• v.22 no.3
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• pp.16-22
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• 1985

In this paper a new algorithm named modified delta modulation (MDM) for encoding filter coefficients is proposed. And this paper presents the designing method of multiplier less FIR filters rosin영 Proposed MDM a19orithm. In the delta modulation (DM) system the quantiaation levels consist of two levels $\pm$1, but in newly proposed MDM algorithm quantization levels are extended to many levels 0, $\pm$2$^n$, n=0, 1, 2... It is recognized by the result of computer simulations that frequency response of multi-plierless FIR filters designed by MDM algorithm is relatively good. And comparing with con-ventional FIR filters on the number of hardware devices, this filter needs a little increased memory, but regardless of filter order it needs only one multiplier which is used for signal scaling.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.888-890
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• 2015

많은 개발자가 참여하는 대형 소프트웨어 시스템 개발의 효율성 증대를 위해서는 컴포넌트 간 인터페이스의 효과적인 관리가 필수적이다. MDMS는 컴포넌트간의 인터페이스 정의 및 변경 이력 관리, 인터페이스 기술서 자동 생성, 소스 코드 자동 생성 등의 기능을 제공하는 도구이다. 한화탈레스는 1998년 MDMS를 처음 개발하여 적용한 이후 다양한 국방 소프트웨어 시스템 개발에 적용하여 소프트웨어 개발 생산성 향상에 효과를 보았다. 하지만, MDMS를 다양한 프로젝트에 적용하는 과정에서 최초 개발시 고려하지 못했던 여러 문제점 및 한계를 발견하였다. 이러한 문제점 및 한계는 다양한 프로젝트의 특성 지원 미흡, 형상관리 및 유지보수 문제, 프로젝트 간 메시지 재사용 미지원, 취약한 보안 등 이다. 본 논문에서는 이를 해결하기 위하여 네가지 개선방안을 제시한다. 첫 번째, 다양한 프로젝트에 적용이 가능한 유연한 SW 구조로 개선해야 한다. 두 번째, 통일되고 일관된 형상관리와 함께 전담 개발 및 유지보수 조직이 필요하다. 세 번째, 프로젝트간 메시지의 재사용 지원을 위한 방안으로 프로젝트 별 MDMS 운용이 아닌 통합된 MDMS의 운용이 필요하며, 그를 통하여 다른 프로젝트의 인터페이스 정의를 상호 참조할 수 있는 구조를 적용해야 한다. 마지막으로, 외부 협력업체와의 협업을 위한 보안 대책을 수립하고, 관련 보안 기능을 지원하여 사외의 협력업체의 개발자가 직접 MDMS에 접속하여 개발할 수 있도록 개선해야 한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.27 no.1
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• pp.49-57
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• 2017

With the prevalence of mobile devices, many organizations introduce MDM BYOD and try to increase the level of security with them. However, device control of mobile devices in application level cannot be a solution against the fundamental problems. In this paper, we propose a more flexible and more secure method to control the hardware devices using Linux Security Module in the kernel level with the mandatory access control.