• Journal of Internet Computing and Services
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• v.16 no.5
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• pp.59-66
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• 2015

A stochastic modeling approach as a mathematical method for workflow intelligence is widely used for analyzing and simulating workflow models in the literature. In particular, as a resource-centric modeling approach, this paper proposes a stochastic model to represent work-handover relationships between performers in a workflow-supported social network. Calculating probabilities for the work-handover relationships are determined by two types of probabilities. One is the work-transition probability between activities, and the other is the task assignment probability between activities and performers. In this paper, we describe formal definitions of stochastic workflow models and stochastic work-handover relationship models, as well. Then, we propose an algorithm for extracting a stochastic work-handover relationship model from a stochastic workflow model. As a consequence, the proposed model ought to be useful in performing resource-centric workflow simulations and model-log comparison analyses.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.461-464
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• 2006

본 연구에서는 철강산업의 광범위한 업무 프로세스를 하나의 모델로 통합시켜 코일센터전용의 맞춤형 ERP시스템의 구현으로 업무의 효율성과 기간산업으로서의 철강산업에 맞는 새로운 인터페이스 확장 모듈을 제안하였는데 그 결과 첫째, 검증된 S/W 개발 방법론 활용으로 CMM Level2기준에 의한 S/W 품질관리와 진행관리, 체계적인 방법론과 다양한 업무정의를 통하여 고객사의 업무 표준화를 제시하였다. 둘째, 충실한 기술이전으로 고객사의 참여실무자에 대한 다양한 교육과 기술이전을 통한 자체 운영 능력 강화와 개발 과정보다 완료 후의 운영에 최대한의 기술지원을 보장하였다. 마지막으로, 업무처리 속도의 향상이다. 우리가 하고 있는바 정형화된 업무혁신을 통해 표준화하고 시스템화하여 정형화함으로써, 사원들에게는 쉽고, 편하게 일할 수 있게 하고 속도와 효율을 올리자는 목적을 상당 부분 성취했다고 본다. 결산 리드타임이 종전 15일 정도에서 5일 이내로 줄어들었다.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.1126-1130
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• 2006

중랑천, 왕숙천 등과 같이 유역면적이 작은 유역에서 호우 발생에 따른 홍수예보 및 예측 업무를 수행하기 위해서는 선행시간 확보가 필수적이다. 본 연구는 중소하천 유역에서의 홍수예보 및 예측 업무를 통하여 하천 주요지점에서의 홍수예보 업무를 효과적으로 수행할 수 있도록 하는데 목적이 있다. 연구방법으로는 선행시간 확보를 위해 기상청의 수치예보자료에 대하여 정량적 강우예측 자료 활용방안을 검토하였다. 수치예보자료의 정확도 검토는 관측소별/소유역별로 구분하여 T/M자료와 수치예보자료를 통계학적 방법에 의해 검토하였다. 홍수예보 업무 활용을 위해 간단한 강우-유출 통계모형을 구성하여 홍수예측 업무를 수행하였다. 검증자료는 기왕의 수문자료 중 80mm 이상의 호우를 대상으로 실시하였고, 검증결과 활용가능성이 있음을 입증하였다. 본 연구성과를 기존의 주요지천 홍수예보업무에 활용할 수 있도록 하였다.

• Journal of Korean Library and Information Science Society
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• v.37 no.2
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• pp.231-253
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• 2006

This study intends to make a comprehensive inquiry about the theoretical foundations of cataloging outsourcing. To the end, this study examined (1) backgrounds of cataloging outsourcing, 2) the pros and cons of cataloging outsourcing, (3) theoretical justification suggested by guardians of cataloging outsourcing, and (4) methodological limitations found in literatures on the subject. On the basis of it, finally suggested are methodologies for evaluating 'effectiveness' of cataloging outsourcing.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.163-169
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• 2006

비즈니스 환경의 실시간 변화에 대응하기 위해서 최근에 기업은 특정 업무에 대해서 업무 규칙을 비즈니스 룰로 구현하고 이를 처리하는 비즈니스 룰 엔진 기반의 어플리케이션을 구현하고 있다. 비즈니스 룰은 기업이 보유한 업무 규칙을 컴퓨터와 업무 담당자가 동시에 이해할 수 있는 형태로 구성되어야 하는 양면적인 특성을 가지고 있다. 비즈니스 용어 중심으로 되어 있는 업무 규칙과 컴퓨터가 이해할 수 있는 비즈니스 룰은 그 형태가 상이하나 의미적으로 연관관계를 가지고 있기 때문에 체계적인 도출과정이 필요하다. 본 논문에서는 비즈니스 룰 클래스 개념을 적용하여 업무 규칙으로부터 비즈니스 룰을 도출하는 기법에 대해서 알아보고 이를 기반으로 구성한 비즈니스 룰 구축 방법론을 소개하고자 한다.

• The Korean Journal of Nuclear Medicine Technology
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• v.19 no.1
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• pp.17-29
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• 2015

Purpose For nuclear medicine technologists, it is difficult to stay away from or to separate from radiation sources comparing with workers who are using radiation generating devices. Nuclear medicine technologists work is recognized as an optimized way when they are familiar with work practices. The aims of this study are to measure radiation exposure of technologists working in PET and to evaluate the occupational radiation dose after implementation of strategies to lower exposure. Materials and Methods We divided into four working types by QC for PET, injection, scan and etc. in PET scan procedure. In QC of PET, we compared the radiation exposure controlling next to $^{68}Ge$ cylinder phantom directly to controlling the table in console room remotely. In injection, we compared the radiation exposure guiding patient in waiting room before injection to after injection. In scan procedure of PET, we compared the radiation exposure moving the table using the control button located next to the patient to moving the table using the control button located in the far distance. PERSONAL ELECTRONIC DOSEMETER (PED), Tracerco$^{TM}$ was used for measuring exposed radiation doses. Results The average doses of exposed radiation were $0.27{\pm}0.04{\mu}Sv$ when controlling the table directly and $0.13{\pm}0.14{\mu}Sv$ when controlling the table remotely while performing QC. The average doses of exposed radiation were $0.97{\pm}0.36{\mu}Sv$ when guiding patient after injection and $0.62{\pm}0.17{\mu}Sv$ when guiding patient before injection. The average doses of exposed radiation were $1.33{\pm}0.54{\mu}Sv$ when using the control button located next to the patient and $0.94{\pm}0.50{\mu}Sv$ when using the control button located in far distance while acquiring image. As a result, there were statistically significant differences(P<0.05). Conclusion: From this study, we found that how much radiation doses technologists are exposed on average at each step of PET procedure while working in PET center and how we can reduce the occupational radiation dose after implementation of strategies to lower exposure. And if we make effort to seek any other methods to reduce technologist occupational radiation, we can minimize and optimize exposed radiation doses in department of nuclear medicine. Conclusion From this study, we found that how much radiation doses technologists are exposed on average at each step of PET procedure while working in PET center and how we can reduce the occupational radiation dose after implementation of strategies to lower exposure. And if we make effort to seek any other methods to reduce technologist occupational radiation, we can minimize and optimize exposed radiation doses in department of nuclear medicine.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.406-409
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• 2003

The procedure of present military facility remodeling has many problems at the stage of evaluating the priorities in various remodeling projects which have been caused from lots of corps. These problems have usually happened not only because of the shortage of the cooperation system in the related divisions but also because of the nonexistence of the effective process and method for evaluating the priorities. I've reviewed the study of remodeling and military facility business and applied the AHP(Analytic Hierarchy Process) method which is effective to evaluate the priorities in various groups' decision.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.11
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• pp.3331-3339
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• 2009

This study analyzed relation with performance on the job by strategy of outsourcing as study about outsourcing and system operation performance of mid-size ERP systems. To summarize the results of this study, first, mid-size ERP outsourcing companies in stages, rather than the big bang approach to introducing more effective measures could get the conclusion. Second, ERP outsourcing, the business strategies of the big bang as significant were analyzed in terms of partnership. This section introduces the methodology and business partners, regardless of outsourcing could be distinguished from the very important variables. As a result, the standard for business enterprises mid-size mad to keep a systematic business analysis is very difficult. Therefore, a gradual introduction of a step by step implementation of such a methodology capable of performing reliable business methods are needed.

• Korean Journal of Construction Engineering and Management
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• v.11 no.3
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• pp.80-88
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• 2010

The construction industry concentrates their efforts on construction information technology (IT) including construction CALS. However, the actual circumstances for construction IT focuses on building hardware and it neglects importance of business process reengineering (BPR) for construction tasks. A systematic process modeling method and a computerized model by process concept need for building construction BPR. This study develops a generalized BPR procedure for construction projects, and then suggests a new process modeling method for construction BPR that consists of object-related process model (ORPM). Finally, this study develops a web-based ORPM Builder (ORPMB) based on the ORPM methodology, and the applicability of the developed system is verified by a case study with practical construction processes.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.483-486
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• 2006

The value engineering(VE) in construction projects is systematic method which improve quality as well as reduction input cost and as construction VE work extends the range of application, the importance is rising. For this reason studies are needed to enforce design value engineering work systemically and effectively. In this study, we analyzed the problem of the present construction VE processing and deduced the model to be most suitable the work efficiency. As suggested model reflects systemically requirement item of owner and user, it will make approaching direction and standard establishment possible. So it will increase the following function analysis in analyzing step and the effectiveness of creating idea and make successful VE result.