• 품질경영학회지
• /
• 제31권4호
• /
• pp.219-225
• /
• 2003

Two­dimensional warranty data can be modelled using two different approaches： two­dimensional point process and one­dimensional point process with usage as a function of age. The first approach has three different models. First of all, bivariate model is appealing but is not appropriate for explaining warranty claims. Next, the rest of the two models (marked point process, and counting and matching on both directions independently) are more appropriate for explaining warranty claims. However, the second one (counting and matching on both directions independently) assumes that the two variables (variables representing the two­dimensions) are independent. Last of all, one­dimensional point process with usage as a function of age is also promising to explain the two­dimensional warranty claims. But the models or variations of them need more investigation to be applicable to real warranty claim data.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2007년도 정기학술발표대회 논문집
• /
• pp.892-898
• /
• 2007

본 연구는 중소(지방)건설업체의 효율적인 공정관리와 국내 건설 산업의 성과관리를 위한 시스템 구축을 목적으로 한다. 린 건설의 공정관리 프로세스를 탑재한 시스템은 Web 2.0 플랫폼을 기반으로 프로젝트에 참여한 수많은 원도급업체와 협력업체의 클러스터를 생성하여 상호 유기적인 공정관리를 가능하게 할 것이다. 또한 프로젝트 진행 중 발생되는 수많은 데이터를 수집/축적하여 프로젝트가 진행 중이거나 종료 된 후 이를 분석하여 프로젝트의 성과관리에 대한 비교가 가능 할 것이다. 이러한 성과관리 사례들은 차후 실행되는 유사한 프로젝트의 공정계획에도 도움이 될 것이다. 본 연구의 기대효과는 Web을 통한 공정관리로 인해 국내 중소(지방)건설업체가 느끼는 복잡한 공정관리 및 시스템 구축에 따른 부담감을 조금이나마 덜어 줄 것이며, 데이터베이스에 축적되는 방대한 양의 신뢰도 높은 데이터로 보다 정확한 성과관리를 할 것으로 기대된다. 그리고 더 나아가 공정관리뿐만 아니라 설계, 감리, CM 등 폭 넓은 데이터베이스 구축을 통해 건설산업의 경쟁력 향상에도 기여 할 것이다.

• 한국컴퓨터정보학회논문지
• /
• 제23권11호
• /
• pp.103-109
• /
• 2018

This paper presents an idea and framework to automate a full cycle business process management and re-engineering by integrating traditional business process management systems, process mining, data mining, machine learning, and simulation. We build our framework on the cloud-based platform such that various data sources can be incorporated. We design our systems to be extensible so that not only beneficial for practitioners of BPM, but also for researchers. Our framework can be used as a test bed for researchers without the complication of system integration. The automation of redesigning phase and selecting a baseline process model for deployment are the two main contributions of this study. In the redesigning phase, we deal with both the analysis of the existing process model and what-if analysis on how to improve the process at the same time, Additionally, improving a business process can be applied in a case by case basis that needs a lot of trial and error and huge data. In selecting the baseline process model, we need to compare many probable routes of business execution and calculate the most efficient one in respect to production cost and execution time. We also discuss the challenges and limitation of the framework, including the systems adoptability, technical difficulties and human factors.

• Asia pacific journal of information systems
• /
• 제14권4호
• /
• pp.23-47
• /
• 2004

This study was tried for the improvement of software process ability of the software firms, and analyzed empirically the impact that a software process infrastructure level influences on the software process level and process performance. The questionnaire were developed and data were collected from the process improvement correspondences or project quality managers of the 78 software firms. The result was shown that management-organization infrastructure was composed of software process improvement organization's role and activity, process standard and education, management system and supporting, management guides and procedures. And organization's standard development procedure or criteria, process asset, process support tools were included in technical infrastructure. This study provides that some components of software process infrastructure had an significant influence on the process level, process infrastructure management level, and software process performance.

• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 2007년도 정기 학술대회 논문집
• /
• pp.165-169
• /
• 2007

In order to develop VirtuAlmighty system, CPDM (construction project data management) and CPLM (construction project lifecycle management) model must be settled beforehand. Because most of information systems based on 3D-Design have its own database and business process. So, our team will develop collaboration management architecture of construction process for Decision Support based on PLM (Project Life-cycle Management). This architecture with business processes and Database can be used in process develop, process monitoring with many stakeholders of project, process change management, and so on.

• 한국IT서비스학회:학술대회논문집
• /
• 한국IT서비스학회 2003년도 추계학술대회
• /
• pp.713-721
• /
• 2003

Embedded 소프트웨어의 품길 측정 프로세스 관리는 Embedded 시스템의 적시성과 품질 만족을 위해서도 필요하다. 그러나, Embedded 소프트웨어의 결함에 대하여 사전 분석하거나 예측 없이 개발 프로세스 상에서 결함을 관리하는 것은 위험이 따른다. 본 연구에서는 Embedded 소프트웨어에서 품질 측정 프로세스 관리를 위해 소프트웨어의 정량적 속성 중에 가장 중요한 요소 중에 하나인 결함을 중심으로 본 연구가 진행되었다. Embedded 소프트웨어에 가장 적합한 프로세스를 정의하고 개선하고자 하는 과정에서, 프로세스 관리를 효과적으로 수행하기 위해 Embedded 소프트웨어의 특성과 결함 특성을 이해하고, 이를 근간으로 결함 속성을 정의하고 결함을 통한 품질 측정 프로세스 관리를 할 수 있도록, 결함 데이터를 이용하여 프로세스를 관리하는데 기여하고자 한다. 따라서, 본 연구에서는 결함 데이터 분석을 위해 필요한 속성을 파악하고, 테스트 단계를 중심으로 결함 데이터의 활용과 결함데이터를 이용한 프로세스 관리 방법을 제안하여, 이를 통해 Embedded 소프트웨어 프로세스를 관리하는 분들에게 효과적인 활용이 될 수 있도록 한다.

• International Journal of Quality Innovation
• /
• 제6권3호
• /
• pp.70-94
• /
• 2005

The IC packaging industry heavily relies on shop floor information, necessitating the development of a model to flexibly define shop floor information and timely handle manufacturing data. This study presents a novel data model of product manufacturing flow to define shop floor information to effectively respond to accelerated developments in IC package industry. The proposed data model consists of four modules: operation template setup, general process setup, enhanced bill of manufacture (EBOMfr) setup, and work-order process setup. The data model can flexibly define the required shop floor information and decision rules for shop floor product manufacturing flow, allowing one to easily adopt changes of the product and on the shop floor. However, to handle floor dynamics of the IC packaging industry, this work also proposes a WIP (i.e. work-in-process) system for monitoring and controlling the product manufacturing flow on the shop floor. The WIP system integrates the data model with a WIP execution module. Furthermore, an illustrative example, the MIRL WIP System, developed by Mechanical Industrial Research Laboratories of Industrial Technology Research Institute, demonstrates the effectiveness of the proposed model.

• 정보처리학회논문지D
• /
• 제18D권3호
• /
• pp.149-156
• /
• 2011

최근 기업의 시스템들은 데이터 공유와 협업을 위해 통합의 필요성을 제기하고 있다. 통합을 위한 방법론으로 서비스 통합을 위한 서비스 지향 아키텍처와 서비스에 사용되는 데이터의 통합을 위한 마스터 데이터가 등장했다. 본 논문은 BP(Business Process)를 효율적으로 운용하기 위한 방안을 제시한다. 우리는 BP를 지원하기 위한 지식 저장소로 XMDR(eXtended Meta Data Registry)과 이를 운용하기 위한 데이터 허브를 구성한다. XMDR은 데이터 통합을 위한 MDM(Master Data Management)을 관리하고, 데이터 간의 이질성을 해결하고, 업무 간의 연관관계를 효율적으로 제공한다. 이것은 MDR(Meta Data Registry), 온톨로지, BR(Business Relations)으로 구성된다. MDR은 구조적 이질성을 해결하기 위한 메타 데이터간의 관계성을 기술한다. 온톨로지는 의미적 이질성과 데이터 간의 관계성을 기술한다. BR은 업무 간의 관계성을 기술한다. XMDR 데이터 허브는 마스터 데이터의 관리를 지원하고, 프로세스 간의 상호작용을 효율적으로 지원할 수 있다.

• 대한산업공학회지
• /
• 제40권1호
• /
• pp.43-51
• /
• 2014

Statistical process control (SPC) is an important technique for monitoring and managing the manufacturing process. In spite of its easiness and effectiveness, some problematic sides of application exist such that the SPC techniques are hardly reflect the changes of the process conditions. Especially, update of control limits at the right time plays an important role in acquiring a reasonable performance of control charts. Therefore, we propose the control chart performance evaluation index (CPEI) based on count data model to monitor and manage the performance of control charts. The CPEI could indicate the degree of control chart performance and be helpful to detect the proper update cycle of control limits in real time. Experiments using real manufacturing data show that the proper update intervals are made by proposed method.

• 품질경영학회지
• /
• 제41권4호
• /
• pp.725-735
• /
• 2013

Purpose: The purpose of this study is to propose an Integrated Safety Evaluation Process (ISEP) that can enhances the safety aspect of the safety-critical system. This process utilizes the advantages of the iterative Systems Engineering process combined with the safety assessment process that is commonly and well defined in many standards and/or guidelines for railway, aerospace, and other safety-critical systems. Methods: The proposed process model is based on the predefined system lifecycle, in each phase of which the appropriate safety assessment activities and the safety data are identified. The interfaces between Systems Engineering process and the safety assessment process are identified before the two processes are integrated. For the integration, the elements at lower level of Systems Engineering process are combined with the relevant elements of safety assessment process. This combined process model is represented as Enhanced Functional Flow Block Diagram (EFFBD) by using CORE(R) that is commercial modelling tool. Results: The proposed model is applied to the lifecycle and management process of the United States aircraft system. The US aircraft systems engineering process are composed of twelve key elements, among which the requirements management, functional analysis, and Synthesis processes are considered for examplenary application of the proposed process. To synchronize the Systems Engineering process and the safety assessment process, the Systems Engineering milestones are utilized, where the US aircraft system has thirteen milestones. Taking into account of the nine steps in the maturity level, the integrated process models are proposed in some phases of lifecycle. The flows of processes are simulated using CORE(R), confirming the flows are timelined without any conflict between the Systems Engineering process and the safety assessment process. Conclusion: ISEP allows the timeline analysis for identifying activity and data flows. Also, the use of CORE(R) is shown to be effective in the management and change of process data, which helps for the ISEP to apply for the development of safety critical system. In this study, only the first few phases of lifecyle are considered, however, the implementation through operation phases can be revised by combining the elements of safety activities regarding those phases.